Don't use emoticons in strings

F-Droid/res/values/strings.xml

@@ -322,7 +322,7 @@
     <string name="swap_cant_send_no_bluetooth">Cannot send F-Droid, because Bluetooth is unavailable on this device.</string>
     <string name="loading">Loading…</string>
     <string name="swap_attempt_install">Try to install</string>
-    <string name="swap_connection_misc_error">An error occurred while connecting to device, we can\'t seem to swap with it :(</string>
+    <string name="swap_connection_misc_error">An error occurred while connecting to device, we can\'t seem to swap with it.</string>
     <string name="swap_not_enabled">Swapping not enabled</string>
     <string name="swap_not_enabled_description">Before swapping, your device must be made visible.</string>