Remove support for GoKeyify

Standalone keyify tool has been removed from the go-tools repository and
integrated with gopls.

dominikh/go-tools#769

Author: paskozdilar

autoload/go/keyify.vim

@@ -765,21 +765,6 @@ CTRL-t
 
     Toggles |'g:go_template_autocreate'|.
 
-                                                               *:GoKeyify*
-:GoKeyify
-
-    Uses `keyify` to turn unkeyed struct literals into keyed ones.
-
-    For example:
->
-      Person{"John", "Smith"}
-<
-    Becomes:
->
-      Person{
-        Name: "John",
-        Surname: "Smith",
-      }
 <
                                                                *:GoFillStruct*
 :GoFillStruct

doc/vim-go.txt

@@ -91,11 +91,6 @@ command! -nargs=* -complete=customlist,go#impl#Complete GoImpl call go#impl#Impl
 " -- template
 command! -nargs=0 GoTemplateAutoCreateToggle call go#template#ToggleAutoCreate()
 
-" -- keyify
-if go#package#InGOPATH()
-  command! -nargs=0 GoKeyify call go#keyify#Keyify()
-endif
-
 " -- fillstruct
 command! -nargs=0 GoFillStruct call go#fillstruct#FillStruct()
 

ftplugin/go/commands.vim

@@ -54,7 +54,6 @@ let s:packages = {
       \ 'gorename':      ['golang.org/x/tools/cmd/gorename@master'],
       \ 'gotags':        ['github.com/jstemmer/gotags@master'],
       \ 'impl':          ['github.com/josharian/impl@main'],
-      \ 'keyify':        ['honnef.co/go/tools/cmd/keyify@master'],
       \ 'motion':        ['github.com/fatih/motion@latest'],
       \ 'iferr':         ['github.com/koron/iferr@master'],
 \ }