Fixed issue #1549, #1662.

src/bgfx.cpp

@@ -3415,7 +3415,6 @@ namespace bgfx
 				s_allocatorStub = NULL;
 			}
 
-			s_renderFrameCalled = false;
 			s_threadIndex = 0;
 			g_callback    = NULL;
 			g_allocator   = NULL;