Revert "Telephony: Add getLteOnGsmMode() method (1/2). Ty mike@kasick and rmcc"

This reverts commit 62cf7b15d78fbe9250e92b36ec0c9185acf60450.
Revert "telephony: disable the use of SMS_EXPECT_MORE by default (1/2), ty pawit"

This reverts commit 34831db641ebf139cf24fd7561149d903e85dc20.