Revert "AlarmManager: Store time offset system property"

This reverts commit 45f7d8701f75128951a7678729c2ba95a07bdf5b.

Reason for revert: Updating how sys props are stored b/340482112

Change-Id: Ib846d42fac638e71874a97840b32159132eb9046
diff --git a/apex/jobscheduler/service/java/com/android/server/alarm/AlarmManagerService.java b/apex/jobscheduler/service/java/com/android/server/alarm/AlarmManagerService.java
index 39de0af..00f6e5c 100644
--- a/apex/jobscheduler/service/java/com/android/server/alarm/AlarmManagerService.java
+++ b/apex/jobscheduler/service/java/com/android/server/alarm/AlarmManagerService.java
@@ -115,7 +115,6 @@
 import android.os.ShellCallback;
 import android.os.ShellCommand;
 import android.os.SystemClock;
-import android.os.SystemProperties;
 import android.os.ThreadLocalWorkSource;
 import android.os.Trace;
 import android.os.UserHandle;
@@ -230,9 +229,6 @@
 
     private static final long TEMPORARY_QUOTA_DURATION = INTERVAL_DAY;
 
-    // System property read on some device configurations to initialize time properly.
-    private static final String TIMEOFFSET_PROPERTY = "persist.sys.time.offset";
-
     private final Intent mBackgroundIntent
             = new Intent().addFlags(Intent.FLAG_FROM_BACKGROUND);
 
@@ -2146,9 +2142,6 @@
             // "GMT" if the ID is unrecognized). The parameter ID is used here rather than
             // newZone.getId(). It will be rejected if it is invalid.
             timeZoneWasChanged = SystemTimeZone.setTimeZoneId(tzId, confidence, logInfo);
-
-            final int gmtOffset = newZone.getOffset(mInjector.getCurrentTimeMillis());
-            SystemProperties.set(TIMEOFFSET_PROPERTY, String.valueOf(gmtOffset));
         }
 
         // Clear the default time zone in the system server process. This forces the next call