Revert "Revert "Revert "hammerhead: Add support for modem logging"""

Bug: 11335064

This reverts commit d09b29155c8c640f17dab0484db5beab0e2ebd10.

Change-Id: I489d4fda016bce3db3bb4452d0598f2005db3a6f
diff --git a/init.hammerhead.rc b/init.hammerhead.rc
index 13a8f0d..e353bda 100644
--- a/init.hammerhead.rc
+++ b/init.hammerhead.rc
@@ -126,10 +126,6 @@
     #venus
     write /sys/bus/msm_subsys/devices/subsys2/restart_level "related"
 
-    # Modem logging collection
-    mkdir /data/diag_logs 0777 system system
-    chmod 666 /dev/diag
-
     # leds
     chown system system /sys/class/leds/red/on_off_ms
     chown system system /sys/class/leds/green/on_off_ms