Fix receiving a 3gpp2 long sms over ims issue.

Since cdma support phaseout.
It fails to receive a 3ggp2 long sms over ims(not from cdma cs network).
Remove the cdma check when acknowledgeLastIncomingCdmaSms.
Then the 3gpp2 sms still could be handled correctly.

Bug: 441088060
Test: atest FrameworksTelephonyTests
Test: Insert T mobile card. Test receiving a 3gpp2 long sms.
Flag: EXEMPT revert old code

Change-Id: I99e2e4b105db02c9ee0fbb1c8f786da87e6908e2