Remove functionality to check master branch for zap

examples/chef/chef.py

@@ -97,23 +97,16 @@ def check_python_version() -> None:
         exit(1)
 
 
-def check_zap(master: bool = False) -> str:
-    """Produces hash of ZAP submodule.
+def check_zap() -> str:
+    """Produces SHA of ZAP submodule for current HEAD.
 
-    Args:
-      master: Check branch master instead of current branch.
     Returns:
       SHA of zap submodule.
     """
     shell.run_cmd(f"cd {_REPO_BASE_PATH}")
-    if master:
-        flush_print("Fetching master")
-        command = "git fetch origin master --depth=1 --recurse-submodules"
-        shell.run_cmd(command)
-        branch = "origin/master"
-    else:
-        branch = shell.run_cmd("git rev-parse --abbrev-ref HEAD",
-                               return_cmd_output=True).replace("\n", "")
+    branch = shell.run_cmd("git rev-parse --abbrev-ref HEAD",
+                               return_cmd_output=True)
+    branch = branch.replace("\n", "")
     command = f"git ls-tree {branch} third_party/zap/repo"
     zap_commit = shell.run_cmd(command, return_cmd_output=True)
     zap_commit = zap_commit.split(" ")[2]
@@ -123,19 +116,17 @@ def check_zap(master: bool = False) -> str:
 
 
 def generate_device_manifest(
-        write_manifest_file: bool = False,
-        zap_check_master: bool = False) -> Dict[str, Any]:
+        write_manifest_file: bool = False) -> Dict[str, Any]:
     """Produces dictionary containing md5 of device dir zap files.
 
     Args:
-        write_manifest_file: Serialize manifest in file and tree.
-        zap_check_master: Check master instead of HEAD for zap.
+        write_manifest_file: Serialize manifest in tree.
     Returns:
         Dict containing MD5 of device dir zap files.
     """
     ci_manifest = {"devices": {}}
     devices_manifest = ci_manifest["devices"]
-    zap_sha = check_zap(master=zap_check_master)
+    zap_sha = check_zap()
     ci_manifest["zap_commit"] = zap_sha
     for device_name in _DEVICE_LIST:
         device_file_path = os.path.join(_DEVICE_FOLDER, device_name + ".zap")