Unless you have a specific need for any of the utilities then it’s safe to ignore them.
Astcanary is only used when running asterisk with realtime priority (nothing to do with Asterisk realtime which is completely different).
the astdb2x stuff is for converting older asterisk internal databases to the current format.
aelparse is a utility to check the extensions.ael configuration file before feeding it to asterisk.
astman is a is a full-screen (terminal) client for Asterisk’s manager interface.
check_expr and check_expr2 are for evaluating asterisk expressions externally to asterisk.
conf2ael translates asterisk dialplan code to AEL dialplan code.
muted connects to AMI and will adjust the audio of your system if you get a call apparently.
smsq looks like it’s a CLI interface to enqueueing sms messages somehow.
stereorize Merge two mono WAV-files to one stereo WAV-file.
streamplayer takes a raw TCP stream and pipes it to music on hold for Asterisk