Bug 1206201 - Simplify function that probably doesn't do what we want anyway, r=garndt

testing/taskcluster/taskcluster_graph/commit_parser.py

@@ -51,14 +51,7 @@ def escape_whitespace_in_brackets(input_str):
 def normalize_platform_list(alias, all_builds, build_list):
     if build_list == 'all':
         return all_builds
-
-    results = []
-    for build in build_list.split(','):
-        if build in alias:
-            build = alias[build]
-        results.append(build)
-
-    return results
+    return [alias.get(build, build) for build in build_list.split(',')]
 
 def normalize_test_list(aliases, all_tests, job_list):
     '''