Revert of Create symlink to adb in home dir right before device setup.

scripts/slave/recipe_modules/chromium_android/api.py

Index: scripts/slave/recipe_modules/chromium_android/api.py
diff --git a/scripts/slave/recipe_modules/chromium_android/api.py b/scripts/slave/recipe_modules/chromium_android/api.py
index c7ad0e1f6919ce9355de4084f94cae69e5cfa329..62c36366902ace5766b661f4aa68929c713964d5 100644
--- a/scripts/slave/recipe_modules/chromium_android/api.py
+++ b/scripts/slave/recipe_modules/chromium_android/api.py
@@ -262,14 +262,6 @@
         build_url=None,
         src_dir=self.m.path['slave_build'].join('src'),
         exclude_files='lib.target,gen,android_webview,jingle_unittests')
-
-  def create_adb_symlink(self):
-    # Creates a sym link to the adb executable in the home dir
-    self.m.python(
-        'create adb symlink',
-        self.m.path['checkout'].join('build', 'symlink.py'),
-        ['-f', self.m.adb.adb_path(), os.path.join('~', 'adb')],
-        infra_step=True)
 
   def spawn_logcat_monitor(self):
     self.m.step(
@@ -854,7 +846,6 @@
 
   def common_tests_setup_steps(self, perf_setup=False,
                                remove_system_webview=False):
-    self.create_adb_symlink()
     if self.c.gce_setup:
       self.launch_gce_instances(snapshot=self.c.gce_snapshot, count=self.c.gce_count)
       self.spawn_logcat_monitor()