Revert of Use src-side launcher for telemetry_unittests in chromium_trybot recipe

scripts/slave/recipe_modules/chromium/api.py

Index: scripts/slave/recipe_modules/chromium/api.py
diff --git a/scripts/slave/recipe_modules/chromium/api.py b/scripts/slave/recipe_modules/chromium/api.py
index 2e0d79ca6aece98e4238f7cebaf08d411de05a6d..8ae7076f99d172df4ad9b9bf215e0ee3049beabd 100644
--- a/scripts/slave/recipe_modules/chromium/api.py
+++ b/scripts/slave/recipe_modules/chromium/api.py
@@ -623,32 +623,3 @@
               '27eac9b2869ef6c89391f305a3f01285ea317867',
               '9d9a93134b3eabd003b85b4e7dea06c0eae150ed',
           ])
-
-  def get_common_args_for_scripts(self):
-    args = []
-
-    args.extend(['--build-config-fs', self.c.build_config_fs])
-
-    paths = {}
-    for path in ('build',):
-      paths[path] = self.m.path[path]
-    args.extend(['--paths', self.m.json.input(paths)])
-
-    properties = {}
-    # TODO(phajdan.jr): Remove buildnumber when no longer used.
-    for name in ('buildername', 'slavename', 'buildnumber'):
-      properties[name] = self.m.properties[name]
-    args.extend(['--properties', self.m.json.input(properties)])
-
-    return args
-
-  def get_compile_targets_for_scripts(self):
-    return self.m.python(
-        name='get compile targets for scripts',
-        script=self.m.path['checkout'].join(
-            'testing', 'scripts', 'get_compile_targets.py'),
-        args=[
-            '--output', self.m.json.output(),
-            '--',
-        ] + self.get_common_args_for_scripts(),
-        step_test_data=lambda: self.m.json.test_api.output({}))