Remove Meta+T shortcut

At the moment there is no way to interact with a open taskbar from
shortcut, so it has been decided to remove this shortcut for now.

Bug: 311676243
Flag: NA
Test: Flashed on device
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:0310424e42e4ff9ce1bd08a84c53ab40f7c13b54)
Merged-In: I9c30335c28c96a2fe47cb5a4c355e4a68c44cee6
Change-Id: I9c30335c28c96a2fe47cb5a4c355e4a68c44cee6
24D1-dev is based on 24Q2-release. Therefore, we merged this CL to 24D1-dev.