[3.0] Stop calling destroy methods of texture and FrameBuffers on RenderManager destr...

[3.0] Stop calling destroy methods of texture and FrameBuffers on RenderManager destructor

Crashes because most OpenGL calls get the OpenGL context from
thread local storage. In this case, we're trying to delete
textures on the main thread which has no OpenGL context.

Cherry picked from devel/master branch
https://review.tizen.org/gerrit/#/c/102672/5

Removed destruction of texture and framebuffer resources since they
will be cleaned up automatically when the GL context is destroyed

Change-Id: I67e817a1f40c12b4c6730deb72eb742288575bf1