Revert "[RenderEngine] Rebind output texture when unbinding framebuffer"

This reverts commit d9c717511c46eefa78821a7e326bffde4f02076b.

Reason for revert: Short-term, to unblock emulator users due to
blank app drawer/recents: https://b.corp.google.com/issues/154665573

Bug: b/140158384

Change-Id: Ie3c6500b31eada4bf831ecef1a69c079db4cc61f
diff --git a/libs/renderengine/gl/GLFramebuffer.h b/libs/renderengine/gl/GLFramebuffer.h
index 6757695..b88da3b 100644
--- a/libs/renderengine/gl/GLFramebuffer.h
+++ b/libs/renderengine/gl/GLFramebuffer.h
@@ -39,7 +39,7 @@
 
     bool setNativeWindowBuffer(ANativeWindowBuffer* nativeBuffer, bool isProtected,
                                const bool useFramebufferCache) override;
-    void allocateBuffers(uint32_t width, uint32_t height, void* data = nullptr);
+    void allocateBuffers(uint32_t width, uint32_t height);
     EGLImageKHR getEGLImage() const { return mEGLImage; }
     uint32_t getTextureName() const { return mTextureName; }
     uint32_t getFramebufferName() const { return mFramebufferName; }