Merge pull request #2902 in SNORT/snort3 from ~RUCOMBS/snort3:cleanup to master

Merge pull request #2902 in SNORT/snort3 from ~RUCOMBS/snort3:cleanup to master

Squashed commit of the following:

commit 21d87e82a398504981aafc80de89f7c94ba2ea56
Author: russ <rucombs@cisco.com>
Date:   Wed Aug 11 16:23:14 2021 -0400

    build: update help for --enable-tsc-clock to include arm

    Thanks to liangxwa01 for reporting the issue.

commit 1bc12be15964930e688c8ee28593ba4687e6f21a
Author: russ <rucombs@cisco.com>
Date:   Sat Jun 5 20:10:49 2021 -0400

    style: remove C style (void) arglists

commit e03855cbd592afe0717d68cf96157379e61277bc
Author: russ <rucombs@cisco.com>
Date:   Sat May 29 05:43:05 2021 -0400

    sip: deprecate max_requestName_len in favor of max_request_name_len

commit ed31851fd733ef36f30042492bc692ae8a73943e
Author: Russ Combs <rucombs@cisco.com>
Date:   Fri May 21 11:51:00 2021 -0400

    dns, ssh: remove obsolete stream insert checks

commit 18b15b46f42fe83d3ba0bc5da332f951681e8d6d
Author: Russ Combs <rucombs@cisco.com>
Date:   Fri May 21 11:45:17 2021 -0400

    style: remove or update crufty preprocessor comments

commit 9dfff0600fac18652f3be6a5ee7025b79e04ce92
Author: Russ Combs <rucombs@cisco.com>
Date:   Wed May 12 15:51:13 2021 -0400

    README: mention vars in default config

commit c6baa917361b3651e30d7ec63f37c696ef29512c
Author: Russ Combs <rucombs@cisco.com>
Date:   Wed May 12 15:50:17 2021 -0400

    lua: update comments in the default config

commit ad0ae3d85affd820f4534704bca732e2129752ca
Author: Russ Combs <rucombs@cisco.com>
Date:   Wed May 12 15:24:27 2021 -0400

    style: remove crufty comments