Reduce PID finding retries and simply proc interface on linux

network/state/system_windows.go

@@ -10,13 +10,6 @@ var (
 	getTCP6Table = iphelper.GetTCP6Table
 	getUDP4Table = iphelper.GetUDP4Table
 	getUDP6Table = iphelper.GetUDP6Table
-
-	// With a max wait of 5ms, this amounts to up to 25ms,
-	// excluding potential data fetching time.
-	// Measured on Windows: ~150ms
-	lookupTries = 5
-
-	fastLookupTries = 2
 )
 
 // CheckPID checks the if socket info already has a PID and if not, tries to find it.