Revert "net: Performance fix for process_backlog"

This reverts commit ea902727fd27c3ef70d79da8b5e8dc8d1eb24d4b.
Revert "exFAT support"

This reverts commit 051cb7215b2dbac8a718097f3313d279b3fccffd.
Revert "geeb/gee_defconfig: exfat support"

This reverts commit 8c5f049e5ce1433b7afb6bd4e26a6b28be1bed45.