cs, git, nix: remove "accessible via `tldr command subcommand`" (#10660)

pages/common/cs.md

@@ -1,7 +1,7 @@
 # coursier
 
 > Application and artifact manager for the Scala language, it can install Scala applications and setup your Scala development environment.
-> Some subcommands such as `install`, `launch`, `java`, `fetch`, `resolve`, `complete-dep`, etc. have their own usage documentation, accessible via `tldr cs subcommand`.
+> Some subcommands such as `install`, `launch`, `java`, `fetch`, `resolve`, `complete-dep`, etc. have their own usage documentation.
 > More information: <https://get-coursier.io/docs/overview>.
 
 - Display version:

pages/common/git.md

@@ -1,7 +1,7 @@
 # git
 
 > Distributed version control system.
-> Some subcommands such as `commit`, `add`, `branch`, `checkout`, `push`, etc. have their own usage documentation, accessible via `tldr git subcommand`.
+> Some subcommands such as `commit`, `add`, `branch`, `checkout`, `push`, etc. have their own usage documentation.
 > More information: <https://git-scm.com/>.
 
 - Check the Git version:

pages/common/nix.md

@@ -2,7 +2,7 @@
 
 > A powerful package manager that makes package management reliable, reproducible, and declarative.
 > `nix` is experimental and requires enabling experimental features. For a classic, stable interface, see `tldr nix classic`.
-> Some `nix` subcommands such as `build`, `develop`, `flake`, `registry`, `profile`, `search`, `repl`, `store`, `edit`, `why-depends` etc. have their own usage documentation, accessible via `tldr nix3 subcommand`.
+> Some `nix` subcommands such as `build`, `develop`, `flake`, `registry`, `profile`, `search`, `repl`, `store`, `edit`, `why-depends`, etc. have their own usage documentation.
 > More information: <https://nixos.org/manual/nix>.
 
 - Enable the `nix` command: