Revert "3G usb modem support: Fix compilation error"

This reverts commit 90b22530c4e65b7b1c130a8f63662535456923fa.
Revert "slub: Fix Warning"

This reverts commit ae9eac55e82b9c77c2bf86ee8a23578f41eaede7.
Revert "audit: Fix warning"

This reverts commit f79b8299e9c2231c5cc439f29fcf5276727967ac.
Revert "fat: Fix following warning:"

This reverts commit 2879fa320dc0d6e2eacd8cd35237670f8c14e580.
Revert "slimbus: Fix Warning"

This reverts commit 1c5a79174a7bbdceae38e05096d5f2cf4b2e2fe8.
Revert "net: Fix Warnings"

This reverts commit c98052bc761eddebedb432130489bdeec8d07c45.
Revert "camera: Ignore Warnings"

This reverts commit 909658c87c7f74ef69949670663aa9a2836b29c2.