Revert "[Telephony] Notify onLinkCapacityEstimateChanged"

Revert "Remove the system API of getCarrierBandwidth()"

Revert submission 13662828-LceApi

Reason for revert: b/182869926, breaks errorprone
Reverted Changes:
I1998c7e49:Add CTS test for onLinkCapacityEstimateChanged
Id69fa8b7a:Integrate New LCE Api
I0cc020ba3:Remove the system API of getCarrierBandwidth()
Id613dc152:Add the LCE system API
If7cede0f4:[Telephony] Notify onLinkCapacityEstimateChanged

Change-Id: I0ccc5fbd9442f68d1bd88154dfb79582ca6d03e8