Revert "defconfigs: Enable fmem requirements"

This reverts commit 7c7697c70310757a85ea8bfcfcb213a184bf7e69.

Change-Id: Idf32fed07077e7d5f72c9f9d049c66af3d3e77b9
Revert "msm7x30: Enable fmem support for pmem_adsp"

This reverts commit 769cffcf2a9e61589292f43c286eb4489852892b.

Change-Id: I14f5ead9367d3fbba9002baacbc07ca75015d669