Cosmetic: library/MGCP_CodecPort: remove FIXME

The line below is exactly as it should be according to the FIXME, so
remove it.

Change-Id: If14438edce4437cd30efc3b2520aa43b90e9e16b
diff --git a/library/MGCP_CodecPort.ttcn b/library/MGCP_CodecPort.ttcn
index 8614eef..8819fd8 100644
--- a/library/MGCP_CodecPort.ttcn
+++ b/library/MGCP_CodecPort.ttcn
@@ -74,10 +74,6 @@
 		pout.remPort := pin.remPort;
 		pout.locName := pin.locName;
 		pout.locPort := pin.locPort;
-		/* FIXME: This should actually be the below:
-		   pout.msg := dec_MgcpMessage(oct2char(pin.msg)); - see
-		   https://www.eclipse.org/forums/index.php/t/1088893/
-		 */
 		pout.msg := dec_MgcpMessage(oct2char(pin.msg));
 	} with { extension "prototype(fast)" };