pre-upload: drop duplicate branch checks

These repos enable branch checks via their PRESUBMIT.cfg, so drop them
from the hardcoded list.

BUG=chromium:466264
TEST=`./pre-upload_unittest.py` passes
TEST=uploading in one of these repos still requires BRANCH

Change-Id: Ic1cd168d81f11ad30249c9fba687cdb89be2dbc5
Reviewed-on: https://chromium-review.googlesource.com/262012
Trybot-Ready: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Steve Fung <stevefung@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
diff --git a/pre-upload.py b/pre-upload.py
index 65c6afa..a1a8554 100755
--- a/pre-upload.py
+++ b/pre-upload.py
@@ -1126,7 +1126,6 @@
 _PROJECT_SPECIFIC_HOOKS = {
     "chromeos/platform/ec-private": [_run_checkpatch_ec,
                                      _check_change_has_branch_field],
-    "chromeos/third_party/intel-framework": [_check_change_has_branch_field],
     "chromeos/vendor/kernel-exynos-staging": [_run_checkpatch,
                                               _kernel_configcheck],
     "chromiumos/platform2": [_check_project_prefix],
@@ -1135,12 +1134,9 @@
                                         _run_checkpatch_depthcharge],
     "chromiumos/platform/ec": [_run_checkpatch_ec,
                                _check_change_has_branch_field],
-    "chromiumos/platform/mosys": [_check_change_has_branch_field],
-    "chromiumos/platform/vboot_reference": [_check_change_has_branch_field],
     "chromiumos/third_party/coreboot": [_check_change_has_branch_field,
                                         _check_change_has_signoff_field,
                                         _run_checkpatch_coreboot],
-    "chromiumos/third_party/flashrom": [_check_change_has_branch_field],
     "chromiumos/third_party/kernel": [_run_checkpatch, _kernel_configcheck],
     "chromiumos/third_party/kernel-next": [_run_checkpatch,
                                            _kernel_configcheck],