functests: Fix linter errors

test/functional/autocmd/autocmd_spec.lua

@@ -1,10 +1,5 @@
 local helpers = require('test.functional.helpers')(after_each)
 
-local clear = helpers.clear
-local command = helpers.command
-local eq = helpers.eq
-local eval = helpers.eval
-
 local eq = helpers.eq
 local eval = helpers.eval
 local clear = helpers.clear

test/functional/autocmd/bufenter_spec.lua

@@ -4,7 +4,6 @@ local clear = helpers.clear
 local command = helpers.command
 local eq = helpers.eq
 local eval = helpers.eval
-local command = helpers.command
 local request = helpers.request
 local source = helpers.source
 

test/functional/autocmd/textyankpost_spec.lua

@@ -1,6 +1,6 @@
 local helpers = require('test.functional.helpers')(after_each)
 local clear, eval, eq = helpers.clear, helpers.eval, helpers.eq
-local feed, command, expect, command = helpers.feed, helpers.command, helpers.expect, helpers.command
+local feed, command, expect = helpers.feed, helpers.command, helpers.expect
 local curbufmeths, funcs, neq = helpers.curbufmeths, helpers.funcs, helpers.neq
 
 describe('TextYankPost', function()

test/functional/ex_cmds/menu_spec.lua

@@ -1,6 +1,6 @@
 local helpers = require('test.functional.helpers')(after_each)
 local clear, command, nvim = helpers.clear, helpers.command, helpers.nvim
-local expect, feed, command = helpers.expect, helpers.feed, helpers.command
+local expect, feed = helpers.expect, helpers.feed
 local eq, eval = helpers.eq, helpers.eval
 
 describe(':emenu', function()

test/functional/ex_cmds/write_spec.lua

@@ -1,8 +1,8 @@
 local helpers = require('test.functional.helpers')(after_each)
 local lfs = require('lfs')
-local eq, eval, clear, write_file, command, source, insert =
+local eq, eval, clear, write_file, source, insert =
   helpers.eq, helpers.eval, helpers.clear, helpers.write_file,
-  helpers.command, helpers.source, helpers.insert
+  helpers.source, helpers.insert
 local redir_exec = helpers.redir_exec
 local exc_exec = helpers.exc_exec
 local command = helpers.command

test/functional/legacy/057_sort_spec.lua

@@ -2,9 +2,8 @@
 
 local helpers = require('test.functional.helpers')(after_each)
 
-local insert, command, clear, expect, eq, eval, wait = helpers.insert,
-  helpers.command, helpers.clear, helpers.expect, helpers.eq, helpers.eval,
-  helpers.wait
+local insert, command, clear, expect, eq, wait = helpers.insert,
+  helpers.command, helpers.clear, helpers.expect, helpers.eq, helpers.wait
 local exc_exec = helpers.exc_exec
 
 describe(':sort', function()

test/functional/legacy/063_match_and_matchadd_spec.lua

@@ -2,9 +2,10 @@
 
 local helpers = require('test.functional.helpers')(after_each)
 local Screen = require('test.functional.ui.screen')
-local feed, insert = helpers.feed, helpers.insert
+
 local eval, clear, command = helpers.eval, helpers.clear, helpers.command
 local eq, neq = helpers.eq, helpers.neq
+local insert = helpers.insert
 local redir_exec = helpers.redir_exec
 
 describe('063: Test for ":match", "matchadd()" and related functions', function()

test/functional/legacy/065_float_and_logic_operators_spec.lua

@@ -2,7 +2,7 @@
 
 local helpers = require('test.functional.helpers')(after_each)
 local insert, source = helpers.insert, helpers.source
-local clear, command, expect = helpers.clear, helpers.command, helpers.expect
+local clear, expect = helpers.clear, helpers.expect
 
 describe('floating point and logical operators', function()
   setup(clear)

test/functional/legacy/glob2regpat_spec.lua

@@ -2,7 +2,7 @@
 
 local helpers = require('test.functional.helpers')(after_each)
 local clear, exc_exec = helpers.clear, helpers.exc_exec
-local eq, neq, eval = helpers.eq, helpers.neq, helpers.eval
+local eq, eval = helpers.eq, helpers.eval
 
 describe('glob2regpat()', function()
   before_each(clear)

test/functional/legacy/search_mbyte_spec.lua

@@ -1,6 +1,5 @@
 local helpers = require('test.functional.helpers')(after_each)
 
-local feed = helpers.feed
 local wait = helpers.wait
 local clear = helpers.clear
 local insert = helpers.insert