Initialize renderbuffer variables. Make serials constant. Removed X1R5G5B5 support.
TRAC #13792
Signed-off-by: Daniel Koch

Author:    Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@460 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libEGL/Display.cpp b/src/libEGL/Display.cpp
index a492acf..30a9cf7 100644
--- a/src/libEGL/Display.cpp
+++ b/src/libEGL/Display.cpp
@@ -146,7 +146,7 @@
         //  D3DFMT_A2R10G10B10,   // The color_ramp conformance test uses ReadPixels with UNSIGNED_BYTE causing it to think that rendering skipped a colour value.
             D3DFMT_A8R8G8B8,
             D3DFMT_R5G6B5,
-            D3DFMT_X1R5G5B5,
+        //  D3DFMT_X1R5G5B5,      // Has no compatible OpenGL ES renderbuffer format
             D3DFMT_X8R8G8B8
         };