Completions: Don't check $cmd[1]

This is already done by fish before calling the completion.

It breaks completion with combiners (#2025) and also with wrappers.

(This does not include git because that's better solved in #2145)

share/completions/brew.fish

@@ -1,6 +1,6 @@
 function __fish_brew_needs_command
   set cmd (commandline -opc)
-  if [ (count $cmd) -eq 1 -a $cmd[1] = 'brew' ]
+  if [ (count $cmd) -eq 1 ]
     return 0
   end
   return 1

share/completions/bundle.fish

@@ -2,7 +2,7 @@
 
 function __fish_bundle_no_command --description 'Test if bundle has been given no subcommand'
   set cmd (commandline -opc)
-  if [ (count $cmd) -eq 1 -a $cmd[1] = 'bundle' ]
+  if [ (count $cmd) -eq 1 ]
     return 0
   end
   return 1

share/completions/composer.fish

@@ -1,11 +1,7 @@
 function __fish_composer_needs_command
   set cmd (commandline -opc)
 
-  if [ (count $cmd) -eq 1 -a $cmd[1] = 'composer' ]
-    return 0
-  end
-
-  if [ (count $cmd) -eq 1 -a $cmd[1] = 'composer.phar' ]
+  if [ (count $cmd) -eq 1 ]
     return 0
   end
 

share/completions/heroku.fish

@@ -31,7 +31,7 @@ end
 
 function __fish_heroku_needs_command
     set cmd (commandline -opc)
-    if [ (count $cmd) -eq 1 -a $cmd[1] = 'heroku' ]
+    if [ (count $cmd) -eq 1 ]
         return 0
     end
     return 1

share/completions/lein.fish

@@ -1,6 +1,6 @@
 function __fish_lein_needs_command
   set cmd (commandline -opc)
-  if [ (count $cmd) -eq 1 -a $cmd[1] = 'lein' ]
+  if [ (count $cmd) -eq 1 ]
     return 0
   end
   return 1

share/completions/mix.fish

@@ -1,6 +1,6 @@
 function __fish_mix_needs_command
   set cmd (commandline -opc)
-  if [ (count $cmd) -eq 1 -a $cmd[1] = 'mix' ]
+  if [ (count $cmd) -eq 1 ]
     return 0
   end
   return 1

share/completions/netctl.fish

@@ -1,6 +1,6 @@
 function __fish_netctl_needs_command
   set cmd (commandline -opc)
-  if [ (count $cmd) -eq 1 -a $cmd[1] = 'netctl' ]
+  if [ (count $cmd) -eq 1 ]
     return 0
   end
   return 1

share/completions/npm.fish

@@ -7,7 +7,7 @@
 function __fish_npm_needs_command
   set cmd (commandline -opc)
 
-  if [ (count $cmd) -eq 1 -a $cmd[1] = 'npm' ]
+  if [ (count $cmd) -eq 1 ]
     return 0
   end
 

share/completions/opam.fish

@@ -20,7 +20,7 @@ end
 
 function __fish_opam_needs_command
     set cmd (commandline -opc)
-    if [ (count $cmd) -eq 1 -a $cmd[1] = 'opam' ]
+    if [ (count $cmd) -eq 1 ]
         return 0
     end
     return 1

share/completions/rbenv.fish

@@ -2,7 +2,7 @@
 
 function __fish_rbenv_needs_command
   set cmd (commandline -opc)
-  if [ (count $cmd) -eq 1 -a $cmd[1] = 'rbenv' ]
+  if [ (count $cmd) -eq 1 ]
     return 0
   end
 

share/completions/ruby-build.fish

@@ -1,6 +1,6 @@
 function __fish_ruby-build_needs_command
   set cmd (commandline -opc)
-  if [ (count $cmd) -eq 1 -a $cmd[1] = 'ruby-build' ]
+  if [ (count $cmd) -eq 1 ]
     return 0
   end
   return 1

share/completions/travis.fish

@@ -1,6 +1,6 @@
 function __fish_travis_needs_command
   set cmd (commandline -opc)
-  if [ (count $cmd) -eq 1 -a $cmd[1] = 'travis' ]
+  if [ (count $cmd) -eq 1 ]
     return 0
   end
   return 1