Revert "Build script changes for R600/SI Codegen v6"

This reverts commit e3013202259ed1e006c21817c63cf25d75982721.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160301 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/configure b/configure
index 82dceb4..72145bc 100755
--- a/configure
+++ b/configure
@@ -1417,7 +1417,7 @@
   --enable-targets        Build specific host targets: all or
                           target1,target2,... Valid targets are: host, x86,
                           x86_64, sparc, powerpc, arm, mips, spu, hexagon,
-                          xcore, msp430, nvptx, r600, and cpp (default=all)
+                          xcore, msp430, nvptx, and cpp (default=all)
   --enable-bindings       Build specific language bindings:
                           all,auto,none,{binding-name} (default=auto)
   --enable-libffi         Check for the presence of libffi (default is NO)
@@ -5329,7 +5329,7 @@
   enableval=host
 fi
 case "$enableval" in
-  all) TARGETS_TO_BUILD="X86 Sparc PowerPC ARM Mips CellSPU XCore MSP430 CppBackend MBlaze NVPTX Hexagon AMDGPU" ;;
+  all) TARGETS_TO_BUILD="X86 Sparc PowerPC ARM Mips CellSPU XCore MSP430 CppBackend MBlaze NVPTX Hexagon" ;;
   *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
       case "$a_target" in
         x86)      TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
@@ -5346,7 +5346,6 @@
         hexagon)  TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
         mblaze)   TARGETS_TO_BUILD="MBlaze $TARGETS_TO_BUILD" ;;
         nvptx)    TARGETS_TO_BUILD="NVPTX $TARGETS_TO_BUILD" ;;
-	r600)     TARGETS_TO_BUILD="AMDGPU $TARGETS_TO_BUILD" ;;
         host) case "$llvm_cv_target_arch" in
             x86)         TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
             x86_64)      TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
@@ -10211,7 +10210,7 @@
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 10214 "configure"
+#line 10213 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H