[core] unshare daemon (#892)

core/magisk_module/post-fs-data.sh

@@ -136,4 +136,4 @@ if [ ! -z "${MISC_PATH}" ]; then
 fi
 
 rm -f "/data/local/tmp/lspd.dex"
-"$MODDIR/lspd"
+unshare -m sh -c "$MODDIR/lspd &"

core/magisk_module/service.sh

@@ -21,4 +21,4 @@
 
 MODDIR=${0%/*}
 # post-fs-data.sh may be blocked by other modules. retry to start this
-"$MODDIR/lspd" --from-service
+unshare -m $MODDIR/lspd --from-service

core/src/main/java/org/lsposed/lspd/service/ServiceManager.java

@@ -85,8 +85,6 @@ public class ServiceManager {
 
         systemServerService.putBinderForSystemServer();
 
-        Process.killProcess(Os.getppid());
-
         DdmHandleAppName.setAppName("lspd", 0);
 
         waitSystemService("package");