Remove resources for 4G/LTE/LTE+ icons

CarrierConfig values have been added to better support MVNOs.
Remove the legacy resources.

Test: Make sure that marlin builds with the new carrier configs.
Bug: 113309357
Bug: 113309356
Change-Id: I3b0af46282a4b7fc8487acfb75b5dbbb7f41d316
Merged-In: I3b0af46282a4b7fc8487acfb75b5dbbb7f41d316
1 file changed