Remove the macro _RS_RUNTIME.

It's going away in the upcoming generator change.  This is to isolate that
change.

Change-Id: I72c6e1c7706bf0c7306256e39c6d15e018c08716
diff --git a/scriptc/rs_core.rsh b/scriptc/rs_core.rsh
index c1c96aa..0159e6b 100644
--- a/scriptc/rs_core.rsh
+++ b/scriptc/rs_core.rsh
@@ -46,8 +46,6 @@
 #ifndef __RS_CORE_RSH__
 #define __RS_CORE_RSH__
 
-#define _RS_RUNTIME extern
-
 #define RS_KERNEL __attribute__((kernel))
 
 #include "rs_types.rsh"
@@ -199,6 +197,4 @@
     rsForEach(rs_script script, rs_allocation input, rs_allocation output);
 #endif
 
-#undef _RS_RUNTIME
-
 #endif
diff --git a/scriptc/rs_math.rsh b/scriptc/rs_math.rsh
index 4d3124c..0a0e688 100644
--- a/scriptc/rs_math.rsh
+++ b/scriptc/rs_math.rsh
@@ -64,28 +64,28 @@
  * @param low
  * @param high
  */
-_RS_RUNTIME uint __attribute__((const, overloadable, always_inline)) rsClamp(uint amount, uint low, uint high);
+extern uint __attribute__((const, overloadable, always_inline)) rsClamp(uint amount, uint low, uint high);
 
 /**
  * \overload
  */
-_RS_RUNTIME int __attribute__((const, overloadable, always_inline)) rsClamp(int amount, int low, int high);
+extern int __attribute__((const, overloadable, always_inline)) rsClamp(int amount, int low, int high);
 /**
  * \overload
  */
-_RS_RUNTIME ushort __attribute__((const, overloadable, always_inline)) rsClamp(ushort amount, ushort low, ushort high);
+extern ushort __attribute__((const, overloadable, always_inline)) rsClamp(ushort amount, ushort low, ushort high);
 /**
  * \overload
  */
-_RS_RUNTIME short __attribute__((const, overloadable, always_inline)) rsClamp(short amount, short low, short high);
+extern short __attribute__((const, overloadable, always_inline)) rsClamp(short amount, short low, short high);
 /**
  * \overload
  */
-_RS_RUNTIME uchar __attribute__((const, overloadable, always_inline)) rsClamp(uchar amount, uchar low, uchar high);
+extern uchar __attribute__((const, overloadable, always_inline)) rsClamp(uchar amount, uchar low, uchar high);
 /**
  * \overload
  */
-_RS_RUNTIME char __attribute__((const, overloadable, always_inline)) rsClamp(char amount, char low, char high);
+extern char __attribute__((const, overloadable, always_inline)) rsClamp(char amount, char low, char high);
 
 
 /**
@@ -202,7 +202,7 @@
  *
  * @return uchar4
  */
-_RS_RUNTIME uchar4 __attribute__((const, overloadable)) rsPackColorTo8888(float r, float g, float b);
+extern uchar4 __attribute__((const, overloadable)) rsPackColorTo8888(float r, float g, float b);
 
 /**
  * Pack floating point (0-1) RGBA values into a uchar4.
@@ -214,7 +214,7 @@
  *
  * @return uchar4
  */
-_RS_RUNTIME uchar4 __attribute__((const, overloadable)) rsPackColorTo8888(float r, float g, float b, float a);
+extern uchar4 __attribute__((const, overloadable)) rsPackColorTo8888(float r, float g, float b, float a);
 
 /**
  * Pack floating point (0-1) RGB values into a uchar4.  The alpha component is
@@ -224,7 +224,7 @@
  *
  * @return uchar4
  */
-_RS_RUNTIME uchar4 __attribute__((const, overloadable)) rsPackColorTo8888(float3 color);
+extern uchar4 __attribute__((const, overloadable)) rsPackColorTo8888(float3 color);
 
 /**
  * Pack floating point (0-1) RGBA values into a uchar4.
@@ -233,7 +233,7 @@
  *
  * @return uchar4
  */
-_RS_RUNTIME uchar4 __attribute__((const, overloadable)) rsPackColorTo8888(float4 color);
+extern uchar4 __attribute__((const, overloadable)) rsPackColorTo8888(float4 color);
 
 /**
  * Unpack a uchar4 color to float4.  The resulting float range will be (0-1).
@@ -242,10 +242,10 @@
  *
  * @return float4
  */
-_RS_RUNTIME float4 __attribute__((const)) rsUnpackColor8888(uchar4 c);
+extern float4 __attribute__((const)) rsUnpackColor8888(uchar4 c);
 
-_RS_RUNTIME uchar4 __attribute__((const, overloadable)) rsYuvToRGBA_uchar4(uchar y, uchar u, uchar v);
-_RS_RUNTIME float4 __attribute__((const, overloadable)) rsYuvToRGBA_float4(uchar y, uchar u, uchar v);
+extern uchar4 __attribute__((const, overloadable)) rsYuvToRGBA_uchar4(uchar y, uchar u, uchar v);
+extern float4 __attribute__((const, overloadable)) rsYuvToRGBA_float4(uchar y, uchar u, uchar v);
 
 
 #endif
diff --git a/scriptc/rs_matrix.rsh b/scriptc/rs_matrix.rsh
index 6faeca1..252a109 100644
--- a/scriptc/rs_matrix.rsh
+++ b/scriptc/rs_matrix.rsh
@@ -61,17 +61,17 @@
  * \warning The order of the column and row parameters may be
  * unexpected.
  */
-_RS_RUNTIME void __attribute__((overloadable))
+extern void __attribute__((overloadable))
 rsMatrixSet(rs_matrix4x4 *m, uint32_t col, uint32_t row, float v);
 /**
  * \overload
  */
-_RS_RUNTIME void __attribute__((overloadable))
+extern void __attribute__((overloadable))
 rsMatrixSet(rs_matrix3x3 *m, uint32_t col, uint32_t row, float v);
 /**
  * \overload
  */
-_RS_RUNTIME void __attribute__((overloadable))
+extern void __attribute__((overloadable))
 rsMatrixSet(rs_matrix2x2 *m, uint32_t col, uint32_t row, float v);
 
 /**
@@ -86,17 +86,17 @@
  *
  * @return float
  */
-_RS_RUNTIME float __attribute__((overloadable))
+extern float __attribute__((overloadable))
 rsMatrixGet(const rs_matrix4x4 *m, uint32_t col, uint32_t row);
 /**
  * \overload
  */
-_RS_RUNTIME float __attribute__((overloadable))
+extern float __attribute__((overloadable))
 rsMatrixGet(const rs_matrix3x3 *m, uint32_t col, uint32_t row);
 /**
  * \overload
  */
-_RS_RUNTIME float __attribute__((overloadable))
+extern float __attribute__((overloadable))
 rsMatrixGet(const rs_matrix2x2 *m, uint32_t col, uint32_t row);
 
 /**
@@ -411,37 +411,37 @@
  * This function is available in API version 10-13.  Starting with API 14,
  * the function takes a const matrix as the first argument.
  */
-_RS_RUNTIME float4 __attribute__((overloadable))
+extern float4 __attribute__((overloadable))
 rsMatrixMultiply(rs_matrix4x4 *m, float4 in);
 
 /**
  * \overload
  */
-_RS_RUNTIME float4 __attribute__((overloadable))
+extern float4 __attribute__((overloadable))
 rsMatrixMultiply(rs_matrix4x4 *m, float3 in);
 
 /**
  * \overload
  */
-_RS_RUNTIME float4 __attribute__((overloadable))
+extern float4 __attribute__((overloadable))
 rsMatrixMultiply(rs_matrix4x4 *m, float2 in);
 
 /**
  * \overload
  */
-_RS_RUNTIME float3 __attribute__((overloadable))
+extern float3 __attribute__((overloadable))
 rsMatrixMultiply(rs_matrix3x3 *m, float3 in);
 
 /**
  * \overload
  */
-_RS_RUNTIME float3 __attribute__((overloadable))
+extern float3 __attribute__((overloadable))
 rsMatrixMultiply(rs_matrix3x3 *m, float2 in);
 
 /**
  * \overload
  */
-_RS_RUNTIME float2 __attribute__((overloadable))
+extern float2 __attribute__((overloadable))
 rsMatrixMultiply(rs_matrix2x2 *m, float2 in);
 #else
 /**
@@ -457,37 +457,37 @@
  *
  * This function is available starting with API version 14.
  */
-_RS_RUNTIME float4 __attribute__((overloadable))
+extern float4 __attribute__((overloadable))
 rsMatrixMultiply(const rs_matrix4x4 *m, float4 in);
 
 /**
  * \overload
  */
-_RS_RUNTIME float4 __attribute__((overloadable))
+extern float4 __attribute__((overloadable))
 rsMatrixMultiply(const rs_matrix4x4 *m, float3 in);
 
 /**
  * \overload
  */
-_RS_RUNTIME float4 __attribute__((overloadable))
+extern float4 __attribute__((overloadable))
 rsMatrixMultiply(const rs_matrix4x4 *m, float2 in);
 
 /**
  * \overload
  */
-_RS_RUNTIME float3 __attribute__((overloadable))
+extern float3 __attribute__((overloadable))
 rsMatrixMultiply(const rs_matrix3x3 *m, float3 in);
 
 /**
  * \overload
  */
-_RS_RUNTIME float3 __attribute__((overloadable))
+extern float3 __attribute__((overloadable))
 rsMatrixMultiply(const rs_matrix3x3 *m, float2 in);
 
 /**
  * \overload
  */
-_RS_RUNTIME float2 __attribute__((overloadable))
+extern float2 __attribute__((overloadable))
 rsMatrixMultiply(const rs_matrix2x2 *m, float2 in);
 #endif