Revert "Add Repopick"

This reverts commit 87e72766608f8d3bb5ea76c0d90ee82138cfffe1.
FW Port: CM's Repopick.py

script that allows for devs to apply gerrit commits without cherry-picking

* it directs to PA's gerrit

Change-Id: I3061483c3d329751de3b06670ea9e5cfafba37b3
Build: make repopick.py executable

Change-Id: Ide52d3819d8dac37f8e300f96f8efcbbf993b866
repopick: fix broken pipe error from "repo list"

  * the subprocess running "repo list" was not closed cleanly
    if the branch was found

Change-Id: Ie659966f3a670b25ab076a8dc723c4235760d04e
repopick: skip a cherry pick if its already been merged

* override this behavior with the -f argument

Change-Id: I280b4945344e7483a192d1c9769c42b8fd2a2aef
repopick.py: Changes/Improvements

PS2: Including Change-Id in description just incase

Signed-off-by: Ayysir <dresadd09691@gmail.com>

Change-Id: Ief21bf6b134ae4e0a6cb2702282773b21b2d5225
repopick.py: add repopick function ton envsetup

PS2: add repopick function ton envsetup

Signed-off-by: Ayysir <dresadd09691@gmail.com>