Remove runtime inputs from custom project

Those tools are expected to be globally available.
Defining runtime input will not expose system wide versions but link
specific versions.
Updating the packages will not update within the environment as custom
project starts a tmux session with the inherited runtime inputs.

home/packages/custom/project/default.nix

@@ -1,9 +1,7 @@
 {
   writeShellApplication,
   bash,
-  gnused,
-  mycli,
-  tmux
+  gnused
 }:
 
 writeShellApplication {
@@ -12,8 +10,6 @@ writeShellApplication {
   runtimeInputs = [
     bash
     gnused
-    mycli
-    tmux
   ];
 
   text = ''