2 files changed, 0 insertions, 80 deletions
diff --git a/runtime/lua/vim/lsp.lua b/runtime/lua/vim/lsp.lua
index b67b2d6988..e1946816da 100644
--- a/runtime/lua/vim/lsp.lua
+++ b/runtime/lua/vim/lsp.lua
@@ -1279,44 +1279,6 @@ function lsp.with(handler, override_config)
   end
 end
 
---- Helper function to use when implementing a handler.
---- This will check that all of the keys in the user configuration
---- are valid keys and make sense to include for this handler.
----
---- Will error on invalid keys (i.e. keys that do not exist in the options)
---- @param name string
---- @param options table<string,any>
---- @param user_config table<string,any>
-function lsp._with_extend(name, options, user_config)
-  user_config = user_config or {}
-
-  local resulting_config = {} --- @type table<string,any>
-  for k, v in pairs(user_config) do
-    if options[k] == nil then
-      error(
-        debug.traceback(
-          string.format(
-            'Invalid option for `%s`: %s. Valid options are:\n%s',
-            name,
-            k,
-            vim.inspect(vim.tbl_keys(options))
-          )
-        )
-      )
-    end
-
-    resulting_config[k] = v
-  end
-
-  for k, v in pairs(options) do
-    if resulting_config[k] == nil then
-      resulting_config[k] = v
-    end
-  end
-
-  return resulting_config
-end
-
 --- Registry for client side commands.
 --- This is an extension point for plugins to handle custom commands which are
 --- not part of the core language server protocol specification.
diff --git a/test/functional/plugin/lsp/handler_spec.lua b/test/functional/plugin/lsp/handler_spec.lua
deleted file mode 100644
index 4b05b676a8..0000000000
--- a/test/functional/plugin/lsp/handler_spec.lua
+++ /dev/null
@@ -1,42 +0,0 @@
-local t = require('test.testutil')
-local n = require('test.functional.testnvim')()
-
-local eq = t.eq
-local exec_lua = n.exec_lua
-local pcall_err = t.pcall_err
-local matches = t.matches
-
-describe('lsp-handlers', function()
-  describe('vim.lsp._with_extend', function()
-    it('should return a table with the default keys', function()
-      eq(
-        { hello = 'world' },
-        exec_lua(function()
-          return vim.lsp._with_extend('test', { hello = 'world' })
-        end)
-      )
-    end)
-
-    it('should override with config keys', function()
-      eq(
-        { hello = 'universe', other = true },
-        exec_lua(function()
-          return vim.lsp._with_extend(
-            'test',
-            { other = true, hello = 'world' },
-            { hello = 'universe' }
-          )
-        end)
-      )
-    end)
-
-    it('should not allow invalid keys', function()
-      matches(
-        '.*Invalid option for `test`.*',
-        pcall_err(exec_lua, function()
-          return vim.lsp._with_extend('test', { hello = 'world' }, { invalid = true })
-        end)
-      )
-    end)
-  end)
-end)