Meta+AK: Make clang-format-10 clean

Author: https://github.com/BenWiederhake
Commit: 8940bc3503
Pull-request: https://github.com/SerenityOS/serenity/pull/3541
Reviewed-by: https://github.com/alimpfard
Reviewed-by: https://github.com/linusg

AK/GenericLexer.cpp

@@ -276,7 +276,6 @@ void GenericLexer::ignore_until(Condition condition)
         m_index++;
 }
 
-
 bool is_control(char c)
 {
     return (c >= 0 && c <= 31) || c == 127;