Revert "PHCH Receive is reset, the current EARFCN becomes the first one in the list."

This reverts commit f3c04949b7.

srsue/src/phy/phch_recv.cc

@@ -132,11 +132,7 @@ void phch_recv::reset()
   next_offset  = 0;
   cell_is_set = false;
   srate_mode = SRATE_NONE;
-  if (!earfcn.empty()) {
-    current_earfcn = earfcn[0];
-  } else {
-    current_earfcn = 0;
-  }
+  current_earfcn = 0;
   sfn_p.reset();
   measure_p.reset();
   search_p.reset();