cellular_ActivateLTE: remove dead code

Some methods are now unused.

BUG=None
TEST=run test

Change-Id: I56959cc06f8a80820ef8b16c9069e8698a0a363f
Reviewed-on: https://chromium-review.googlesource.com/1551969
Commit-Ready: Eric Caruso <ejcaruso@chromium.org>
Tested-by: Eric Caruso <ejcaruso@chromium.org>
Reviewed-by: Ben Chan <benchan@chromium.org>
diff --git a/client/site_tests/cellular_ActivateLTE/cellular_ActivateLTE.py b/client/site_tests/cellular_ActivateLTE/cellular_ActivateLTE.py
index a1ad34e..8afad98 100644
--- a/client/site_tests/cellular_ActivateLTE/cellular_ActivateLTE.py
+++ b/client/site_tests/cellular_ActivateLTE/cellular_ActivateLTE.py
@@ -189,23 +189,6 @@
             timeout=LONG_TIMEOUT)
 
 
-    def EnsureModemStateReached(self, expected_state, timeout):
-        """
-        Asserts that the underlying modem state becomes |expected_state| within
-        |timeout|.
-
-        @param expected_state: The expected modem state.
-        @param timeout: Timeout in which the condition should be met.
-
-        """
-        utils.poll_for_condition(
-                lambda: self.GetModemState() == expected_state,
-                exception=error.TestFail(
-                        'Modem failed to reach state ' +
-                        mm1_constants.ModemStateToString(expected_state)),
-                timeout=timeout)
-
-
     def CheckServiceActivationState(self, expected_state):
         """
         Asserts that the service activation state matches |expected_state|
@@ -252,27 +235,6 @@
         return service
 
 
-    def FindCellularDevice(self):
-        """Returns the current cellular device."""
-        device = self.test_env.shill.find_cellular_device_object()
-        if not device:
-            raise error.TestError('Could not find cellular device.')
-        return device
-
-
-    def ResetCellularDevice(self):
-        """
-        Resets all modems, guaranteeing that the operation succeeds and doesn't
-        fail due to race conditions in pseudomodem start-up and test execution.
-
-        """
-        self.EnsureModemStateReached(
-                mm1_constants.MM_MODEM_STATE_ENABLED, SHORT_TIMEOUT)
-        self.test_env.shill.reset_modem(self.FindCellularDevice())
-        self.EnsureModemStateReached(
-                mm1_constants.MM_MODEM_STATE_ENABLED, SHORT_TIMEOUT)
-
-
     def run_once(self):
         tests = [
             ActivationResetTest(self),