Revert of [Telemetry] Roll web-page-replay to the lastest commit

telemetry/third_party/webpagereplay/adb_install_cert.py

Index: telemetry/third_party/webpagereplay/adb_install_cert.py
diff --git a/telemetry/third_party/webpagereplay/adb_install_cert.py b/telemetry/third_party/webpagereplay/adb_install_cert.py
index 0c41452d4a030229f2d40303e1488f9e249654b8..4f311b043b7f0088650ec1bc79a5dbaf63c07b24 100644
--- a/telemetry/third_party/webpagereplay/adb_install_cert.py
+++ b/telemetry/third_party/webpagereplay/adb_install_cert.py
@@ -23,19 +23,13 @@ import sys
 KEYCODE_ENTER = '66'
 KEYCODE_TAB = '61'
 
-
 class CertInstallError(Exception):
   pass
 
-
 class CertRemovalError(Exception):
   pass
 
 
-
-_ANDROID_M_BUILD_VERSION = 23
-
-
 class AndroidCertInstaller(object):
   """Certificate installer for phones with KitKat."""
 
@@ -64,11 +58,7 @@ class AndroidCertInstaller(object):
 
   def _adb_su_shell(self, *args):
     """Runs command as root."""
-    build_version_sdk = int(self._get_property('ro.build.version.sdk'))
-    if build_version_sdk >= _ANDROID_M_BUILD_VERSION:
-      cmd = ['shell', 'su', '0']
-    else:
-      cmd = ['shell', 'su', '-c']
+    cmd = ['shell', 'su', '-c']
     cmd.extend(args)
     return self._adb(*cmd)