removed opengles.

cmake/sdlchecks.cmake

@@ -642,15 +642,6 @@ endmacro()
 # - nada
 macro(CheckOpenGLES)
   if(SDL_OPENGLES)
-    check_c_source_compiles("
-        #include <GLES/gl.h>
-        #include <GLES/glext.h>
-        int main (int argc, char** argv) { return 0; }" HAVE_OPENGLES_V1)
-    if(HAVE_OPENGLES_V1)
-        set(HAVE_OPENGLES TRUE)
-        set(SDL_VIDEO_OPENGL_ES 1)
-        set(SDL_VIDEO_RENDER_OGL_ES 1)
-    endif()
     check_c_source_compiles("
         #include <GLES2/gl2.h>
         #include <GLES2/gl2ext.h>