[Squash] Revert all build fixes, since there are no more custom flags

Revert "fix: drivers/power/pm8921-charger.c:1715:23: warning: array subscript is below array bounds"

This reverts commit 26b5ba34b8c7dbd8c517108250c0a5bbd6a7c892.

Revert "fix: drivers/staging/prima/CORE/SME/src/btc/btcApi.c:1153:68: warning: array subscript is below array bounds"

This reverts commit 7345d51909a17d0a45fb30e56711d1ffbfc902b6.

Revert "fix: drivers/staging/prima/CORE/SME/src/btc/btcApi.c:1238:95: warning: array subscript is below array bounds"

This reverts commit b0f584d204e72c88295b8cab0f385639495992eb.

Revert "fix multiple: net/netfilter/nf_conntrack_h323_main.c: warning: '...' may be used uninitialized in this function"

This reverts commit 89ec16352eef8ea9083c938445aeff0953e07a9e.

Revert "fix: net/ipv4/tcp_input.c:4386:49: warning: array subscript is above array bounds"

This reverts commit e8ce90b00377cd5baac0a995df389402695e1ddc.

Revert "fix multiple: sound/usb/mixer.c: warning: '...' may be used uninitialized in this function"

This reverts commit 5265e541d780fce21afc13eb59163f8c7cd7f772.

Revert "fix: ipc/shm.c:1097:2: warning: 'ret' may be used uninitialized in this function"

This reverts commit 2d5e7de1cfa7394033b16e7c6428208d448ca31f.

Revert "net/unix/af_unix: fix: 'warning: '...' may be used uninitialized in this function'"

This reverts commit 20e1dbc1746fcaf37aa2d8f1bdc31710a90c25fa.

Revert "fs/kernel: -O3 fixes"

This reverts commit 9aa0682c234405377ebc7320f3c4633b87dd131a.

Revert "net/bluetooth/l2cap_core: fix: 'warning: '...' may be used uninitialized in this function'"

This reverts commit 67b68dc502925a03dd0698703ab5fd2d4a3240e7.

Revert "drivers/video/msm/external_common.c: fix warning: ‘len’ may be used uninitialized in this function"

This reverts commit bccdf95698005e96889d429e3f38b85b7d00d66a.

Revert "drivers/staging/prima/CORE/SME/src/csr/csrApiRoam: fix: 'warning: 'sessionId' may be used uninitialized in this function' #2"

This reverts commit 5d91e30d8c757c2f664873dd683bee1a5dda6ef8.

Revert "drivers/usb/host/ehci-sched.c: fixwarning: ‘c_mask’ may be used uninitialized in this function"

This reverts commit 87357554cc062ebb975f93b769e4da4104ca2f06.

Revert "drivers/staging/prima/CORE/HDD/src/wlan_hdd_ftm: fix: 'warning: array subscript is above array bounds'"

This reverts commit f8d3a1afef8381d8dfc65dad7875bb6033c60826.

Revert "fs/jbd2/journal: fix: 'warning: 'blocknr' may be used uninitialized in this function'"

This reverts commit 1540913b51a623f964f35ed023a162ef25ebeeb8.

Revert "fs/jbd/journal: fix: 'warning: 'blocknr' may be used uninitialized in this function'"

This reverts commit 01056d0bb700b79e27257bf959d8951f0262fc51.

Revert "fs/fuse/control: fix 'warning: 'val' may be used uninitialized in this function'"

This reverts commit 7537a1d9d4ea8bf03b39f6f0cd38081240a9c447.

Revert "kernel/auditsc.c: fix warning: ‘state’ may be used uninitialized in this function"

This reverts commit 410aa54d1c2888c672b77f960faf20d5a1340f2b.

Revert "drivers/media/common/tuners/xc4000: fix 'warning: '...' may be used uninitialized in this function'"

This reverts commit e55ac0ad9bf2797d2d8cb31064db8bc1d420578d.

Revert "drivers/media/common/tuners/xc5000: fix 'warning: 'adc_envelope' may be used uninitialized in this function'"

This reverts commit d232f1df813ce4ec0afafc04aa76e35adbac0698.

Revert "drivers/media/common/tuners/xc5000: fix 'warning: 'lock_status' may be used uninitialized in this function'"

This reverts commit ed1cbdab535356f5036f3c0db7c5f69e31b9d876.

Revert "drivers/media/common/tuners/xc5000: fix 'warning: 'frame_lines' may be used uninitialized in this function'"

This reverts commit f0031392bc01324dc135f4082e3e465c086cc68e.

Revert "drivers/media/common/tuners/xc5000: fix 'warning: 'quality' may be used uninitialized in this function'"

This reverts commit 068e30152a055b71ea2853933d0e0fec17704434.

Revert "kernel/cgroup: fix: 'warning: 'it.task' may be used uninitialized in this function'"

This reverts commit 989c32f3f71205681aef5ee5a73d88de85a02ad3.

Revert "kernel/workqueue.c: avoid array subscript above array boundaries"

This reverts commit d0bf60ca98a3e76175cb5de107cc5986cfdf8021.

Revert "kernel/sysctl: fix: 'warning: 'kbuf' may be used uninitialized in this function' #2"

This reverts commit 72a15d3f396d2abd21a724458b612db930d8dddf.

Revert "kernel/sysctl: fix: 'warning: 'kbuf' may be used uninitialized in this function'"

This reverts commit edb1b47d630147b9b0900d7fc9c2d19b04b5fe85.