[tools] Do not auto-CC v8-reviews@ on CLs created by branch creator script

R=machenbach@chromium.org

Bug: chromium:878303, chromium:877964
Change-Id: I9f0de35780861f3f121daa9952af70b332c11e98
Reviewed-on: https://chromium-review.googlesource.com/1231176
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Sergiy Byelozyorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56041}

tools/release/create_release.py

@@ -221,7 +221,8 @@ class LandBranch(Step):
     else:
       self.GitUpload(author=self._options.author,
                      force=True,
-                     bypass_hooks=True)
+                     bypass_hooks=True,
+                     no_autocc=True)
     cmd = "cl land --bypass-hooks -f"
     if self._options.dry_run:
       print "Dry run. Command:\ngit %s" % cmd

tools/release/git_recipes.py

@@ -207,7 +207,7 @@ class GitRecipesMixin(object):
 
   def GitUpload(self, reviewer="", author="", force=False, cq=False,
                 cq_dry_run=False, bypass_hooks=False, cc="", tbr_reviewer="",
-                **kwargs):
+                no_autocc=False, **kwargs):
     args = ["cl upload --send-mail"]
     if author:
       args += ["--email", Quoted(author)]
@@ -223,6 +223,8 @@ class GitRecipesMixin(object):
       args.append("--cq-dry-run")
     if bypass_hooks:
       args.append("--bypass-hooks")
+    if no_autocc:
+      args.append("--no-autocc")
     if cc:
       args += ["--cc", Quoted(cc)]
     args += ["--gerrit"]

tools/release/test_scripts.py

@@ -934,7 +934,7 @@ TBR=reviewer@chromium.org"""
       Cmd("git commit -aF \"%s\"" % TEST_CONFIG["COMMITMSG_FILE"], "",
           cb=CheckVersionCommit),
       Cmd("git cl upload --send-mail --email \"author@chromium.org\" "
-          "-f --bypass-hooks --gerrit", ""),
+          "-f --bypass-hooks --no-autocc --gerrit", ""),
       Cmd("git cl land --bypass-hooks -f", ""),
       Cmd("git fetch", ""),
       Cmd("git log -1 --format=%H --grep="