Revert "fix(utils): resolve symlinks before testing executable bit (#1017)" (#1070)

This reverts commit bd7e4de.

Author: Jose Alvarez

lua/null-ls/utils.lua

@@ -85,7 +85,7 @@ end
 ---@param cmd string? command to check
 ---@return boolean, string is_executable, string|nil error_message
 M.is_executable = function(cmd)
-    if cmd and vim.fn.executable(vim.fn.resolve(vim.fn.exepath(cmd))) == 1 then
+    if cmd and vim.fn.executable(cmd) == 1 then
         return true
     end
 

test/spec/utils_spec.lua

@@ -104,26 +104,18 @@ describe("utils", function()
 
     describe("is_executable", function()
         local executable
-        local resolve
-        local exepath
         before_each(function()
             executable = stub(vim.fn, "executable")
-            resolve = stub(vim.fn, "resolve")
-            exepath = stub(vim.fn, "exepath")
         end)
         after_each(function()
             executable:revert()
         end)
 
         it("should call executable with command", function()
             executable.returns(0)
-            resolve.returns("mock-command")
-            exepath.returns("mock-command")
 
             u.is_executable("mock-command")
 
-            assert.stub(exepath).was_called_with("mock-command")
-            assert.stub(resolve).was_called_with("mock-command")
             assert.stub(executable).was_called_with("mock-command")
         end)