dev-arm: Remove the A9GlobalTimer

This is not used anymore

Change-Id: Ia25921cfe47e7f6b895450031abb740f94dc032d
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/31937
Tested-by: kokoro <noreply+kokoro@google.com>
4 files changed