Remove qmuxd from init scripts and sepolicy

This daemon doesn't exist on the device and causes init errors during
boot.

init: /vendor/etc/init/hw/init.walleye.rc: 745: Unable to decode GID
for 'qcom_diag': getpwnam failed: No such file or directory

init: Could not start service 'vendor.qmuxd' as part of class 'main':
Cannot find '/vendor/bin/qmuxd': No such file or directory

Test: tree-hugger passes
Merged-In: Ib2bc1739cac088af3e9ef2e0482f2536dad8fb8c
Change-Id: Ib2bc1739cac088af3e9ef2e0482f2536dad8fb8c
3 files changed