buildhistory used to result in many individual objects in the repo which
could affect performance. This gc call was added over a decade ago to avoid
those performance issues. Modern git calls git-gc when needed and this kind
of workaround should no longer be needed.
There is a small chance this is contributing to problems with the autobuilder
buildhistory repositories, so simplifying the code may help that too.
(From OE-Core rev: 0a88f9109f7670a6b188463a19392d445af6ff40)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
e11cf39bf9