Disable ES2 on Linux SDL

third_party/libsdl/linux/SDL_config.h

 /* include/SDL_config.h.  Generated from SDL_config.h.in by configure.  */
 /*
   Simple DirectMedia Layer
   Copyright (C) 1997-2015 Sam Lantinga <slouken@libsdl.org>
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
   arising from the use of this software.
 
   Permission is granted to anyone to use this software for any purpose,
@@ skipping 301 matching lines @@
 #define SDL_VIDEO_DRIVER_X11_CONST_PARAM_XEXTADDDISPLAY 1
 #define SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM 1
 /* #undef SDL_VIDEO_DRIVER_NACL */
 /* #undef SDL_VIDEO_DRIVER_VIVANTE */
 /* #undef SDL_VIDEO_DRIVER_VIVANTE_VDK */
 
 /* #undef SDL_VIDEO_RENDER_D3D */
 /* #undef SDL_VIDEO_RENDER_D3D11 */
 #define SDL_VIDEO_RENDER_OGL 1
 /* #undef SDL_VIDEO_RENDER_OGL_ES */
-#define SDL_VIDEO_RENDER_OGL_ES2 1
+/* #undef SDL_VIDEO_RENDER_OGL_ES2 */
 /* #undef SDL_VIDEO_RENDER_DIRECTFB */
 
 /* Enable OpenGL support */
 #define SDL_VIDEO_OPENGL 1
 /* #undef SDL_VIDEO_OPENGL_ES */
-#define SDL_VIDEO_OPENGL_ES2 1
+/* #undef SDL_VIDEO_OPENGL_ES2 */
 /* #undef SDL_VIDEO_OPENGL_BGL */
 /* #undef SDL_VIDEO_OPENGL_CGL */
 /* #undef SDL_VIDEO_OPENGL_EGL */
 #define SDL_VIDEO_OPENGL_GLX 1
 /* #undef SDL_VIDEO_OPENGL_WGL */
 /* #undef SDL_VIDEO_OPENGL_OSMESA */
 /* #undef SDL_VIDEO_OPENGL_OSMESA_DYNAMIC */
 
 /* Enable system power support */
 /* #undef SDL_POWER_LINUX */
@@ skipping 12 matching lines @@
 /* #undef SDL_FILESYSTEM_WINDOWS */
 /* #undef SDL_FILESYSTEM_NACL */
 /* #undef SDL_FILESYSTEM_ANDROID */
 /* #undef SDL_FILESYSTEM_EMSCRIPTEN */
 
 /* Enable assembly routines */
 #define SDL_ASSEMBLY_ROUTINES 1
 /* #undef SDL_ALTIVEC_BLITTERS */
 
 #endif /* _SDL_config_h */