How can I disable 128 bit ciphers in apache?

Instead of listing ALL and then removing what you don't want you could just list the accepted ciphersuites, e.g.

SSLCipherSuite ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384

Also, you shouldn't focus on getting A+ 100% on the SSL Labs test. There's no such thing as 100% security, but only security against a risk. What's your risk model? Focusing on tests might even give you false sense of security. The most useful part of the test starts after the grading. There, you can make a suitable compromise between security and compatibility. Are you willing to lose the visitors with older browsers that do not support any of your ciphersuites?