Use dumpstate directly for bugreports.

Use new broadcast flag on dumpstate to notify framework when a
bugreport finished.  Remove older shell scripts.

Bug: 7005318
Change-Id: Iecdf5a37360204c1f803c028a0e49b7d1054a464
diff --git a/init.manta.rc b/init.manta.rc
index 4b49437..c0d737a 100644
--- a/init.manta.rc
+++ b/init.manta.rc
@@ -193,7 +193,8 @@
     write /sys/module/fiq_debugger/parameters/kgdb_enable 1
 
 # bugreport is triggered by holding down volume down, volume up and power
-service bugreport /system/bin/bugmailer.sh -v
+service bugreport /system/bin/dumpstate -d -p -B \
+        -o /data/data/com.android.shell/files/bugreports/bugreport
     class main
     disabled
     oneshot