Revert "Overlay mms_config to increase allowed picture size"

This value is rejected by multiple carriers. 300K is a safe limit, 1MB isn't. 2 out of 3 carriers in my region reject messages due to this.

Please re-submit this overlayed for mcc/mnc pairs of carriers in which this is _known_ to be working.

This reverts commit 43543e4a2df9d7a3376cf6c7f44bb5cbf448f4aa.

Change-Id: I13a6aa5c2e314e7e07abcdb6f30b3e4170fb11b3
Revert "msm8974: Move wcnss-service to main class"

This reverts commit d3e35844b3b499582383b69937d482eb088408dc.

This fixed BACON-1293. The wcnss_service only run once. It has to
happen after data is mounted for encrypted device.

Change-Id: I6e03064aba454569fccb00872a6a9a10d570662b