Remove redundant code

src/org/thoughtcrime/securesms/loki/utilities/MentionUtilities.kt

@@ -52,8 +52,6 @@ object MentionUtilities {
             }
         }
         val result = SpannableString(text)
-        val userLinkedDeviceHexEncodedPublicKeys = DatabaseFactory.getLokiAPIDatabase(context).getDeviceLinks(userHexEncodedPublicKey).flatMap { listOf( it.masterHexEncodedPublicKey, it.slaveHexEncodedPublicKey ) }.toMutableSet()
-        userLinkedDeviceHexEncodedPublicKeys.add(userHexEncodedPublicKey)
         for (mention in mentions) {
             result.setSpan(ForegroundColorSpan(context.resources.getColorWithID(R.color.accent, context.theme)), mention.first.lower, mention.first.upper, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE)
             result.setSpan(StyleSpan(Typeface.BOLD), mention.first.lower, mention.first.upper, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE)