Revert "Fix random underflow."

ag/2820789 fixes wrap issue with compile time flag.
Bug: 65051991
Bug: 63335997

This reverts commit 448cff811f242f271f2d473939f679c89f151758.

Change-Id: I19e5222d1e8090ad4b88882c68381c26011558cb
(cherry picked from commit 42e4f501f99dd411811bf04a034f44e87e7c6b92)
diff --git a/mDNSCore/mDNS.c b/mDNSCore/mDNS.c
index ddee3de..e126754 100755
--- a/mDNSCore/mDNS.c
+++ b/mDNSCore/mDNS.c
@@ -10641,7 +10641,7 @@
 	// Task Scheduling variables
 	result = mDNSPlatformTimeInit();
 	if (result != mStatus_NoError) return(result);
-	m->timenow_adjust = 0;            // b/63335997 , High outbound network traffic
+	m->timenow_adjust = (mDNSs32)mDNSRandom(0xFFFFFFFF);
 	timenow = mDNS_TimeNow_NoLock(m);
 
 	m->timenow                 = 0;		// MUST only be set within mDNS_Lock/mDNS_Unlock section