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.cpp b/libs/renderengine/gl/GLFramebuffer.cpp
index 383486b..cb0d5cf 100644
--- a/libs/renderengine/gl/GLFramebuffer.cpp
+++ b/libs/renderengine/gl/GLFramebuffer.cpp
@@ -68,11 +68,11 @@
     return true;
 }
 
-void GLFramebuffer::allocateBuffers(uint32_t width, uint32_t height, void* data) {
+void GLFramebuffer::allocateBuffers(uint32_t width, uint32_t height) {
     ATRACE_CALL();
 
     glBindTexture(GL_TEXTURE_2D, mTextureName);
-    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, nullptr);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT);