Crash reports from 5% rollout of 1.5: Make some asserts dbg_asserts for now, try to fix an issue with framebuffers when postproc is enabled.

GPU/GLES/FramebufferManagerGLES.cpp

@@ -250,7 +250,6 @@ FramebufferManagerGLES::~FramebufferManagerGLES() {
 	if (stencilUploadProgram_) {
 		glsl_destroy(stencilUploadProgram_);
 	}
-	SetNumExtraFBOs(0);
 
 	for (auto it = tempFBOs_.begin(), end = tempFBOs_.end(); it != end; ++it) {
 		it->second.fbo->Release();