Revert "block: Add URGENT request notification support to CFQ scheduler"

This reverts commit 334790c178156b25414a298ad68c538054cfeb9e.
Revert "audio: Change to set the USB switch state correctly"

This reverts commit 4413222420e61d32b38cd8e13d2ca42be789097a.
Revert "msm: Create shadow files under /sys/kernel/ipv4"

This reverts commit f2fda246425322758fe2d7b3b11c90b12805f518.
Revert "mmc: core: handle flush requests timeout"

This reverts commit 2b800bde36ad9cd143400c75e73bf7bf13453c63.
fix build issues

Signed-off-by: Willi Ye <williye97@gmail.com>