Draft: Drop Trichrome changes

• This didn't work out as expected, not going to waste any more on it.
• Let's just handle this in frameworks to fix this once and for all.

Revert "InstalledAppProvider: Fix Trichrome Library install"

This reverts commit e1d37ce0.

Revert "Remove duplicate entries from installed packages list"

This reverts commit b52c7ca3.

Revert "Sync installed app database with package manager on PACKAGE_CHANGED for shared libraries"

This reverts commit e677d815.

Revert "Guard new privileged extension package manager query with API check"

This reverts commit bb8fce02.

Revert "Add shared library packages to app cache database using F-DroidPrivilegedExtension query"

This reverts commit 08b45d35.

Change-Id: Ic494521fbea01bf041a58ff0c750a9eafffcefbd