Revert "modify for fix SignalStrength"

This reverts commit 42038bc2e97ca3ef77ce79285669ab1eeaac327c.
Revert "change SamsungExynos4RIL.java for E210K RIL patch"

This reverts commit 461ae3a412759d4f9a504881e9d8e0ca4a61ae29.