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
Change-Id: Ib2bc1739cac088af3e9ef2e0482f2536dad8fb8c

init.hardware.rc

@@ -739,11 +739,6 @@ on property:vendor.ims.DATA_DAEMON_STATUS=1
    start vendor.ims_rtp_daemon
    start vendor.imsrcsservice
 
-service vendor.qmuxd /vendor/bin/qmuxd
-   class main
-   user root
-   group radio audio bluetooth gps nfc qcom_diag
-
 service vendor.cnd /vendor/bin/cnd
    class main
    user radio

sepolicy/vendor/file_contexts

@@ -155,7 +155,6 @@
 /vendor/bin/ims_rtp_daemon      u:object_r:hal_imsrtp_exec:s0
 /vendor/bin/ipacm               u:object_r:hal_tetheroffload_default_exec:s0
 /vendor/bin/ipacm-diag          u:object_r:hal_tetheroffload_default_exec:s0
-/vendor/bin/qmuxd               u:object_r:qmuxd_exec:s0
 /vendor/bin/cnd                 u:object_r:cnd_exec:s0
 /vendor/bin/ATFWD-daemon        u:object_r:atfwd_exec:s0
 /vendor/bin/easelmanagerd       u:object_r:easel_exec:s0

sepolicy/vendor/qmuxd.te

@@ -1,5 +0,0 @@
-type qmuxd, domain;
-type qmuxd_exec, exec_type, vendor_file_type, file_type;
-
-net_domain(qmuxd)
-init_daemon_domain(qmuxd)