Revert "Fix Incognito mode crash in AOSP browser"

This reverts commit 9eceb968f7151450f6be870641822e3b6927f143.
Revert "Fix a crash when creating an incognito tab."

This reverts commit 9ab7cb7dae990a6530087c0a6bd0413f04c4eaa5.
Revert "Fix a crash when creating an incognito tab in the quick controls mode."

This reverts commit 2bdd8d1d98f43cb3f861e16315f83eff6beed909.