Fix typo (#5303)

Missing ";" on unset statement.

app/contacts/contact_import_google.php

@@ -114,7 +114,7 @@ if ($_POST['a'] == 'import') {
 				//delete duplicate contact
 					$obj = new contacts;
 					$obj->delete($array);
-					unset($array)
+					unset($array);
 
 				//revoke temporary permissions
 					$p->delete('contact_delete', 'temp');
@@ -604,4 +604,4 @@ function curl_file_get_contents($url) {
 	curl_close($curl);
 	return $contents;
 }
-?>
+?>