test: don't call clear() in both before_each() and after_each()

test/functional/plugin/lsp/codelens_spec.lua

@@ -9,7 +9,6 @@ describe('vim.lsp.codelens', function()
     n.clear()
     exec_lua('require("vim.lsp")')
   end)
-  after_each(n.clear)
 
   it('on_codelens_stores_and_displays_lenses', function()
     local fake_uri = 'file:///fake/uri'

test/functional/plugin/lsp/completion_spec.lua

@@ -863,8 +863,6 @@ describe('vim.lsp.completion: protocol', function()
     end)
   end)
 
-  after_each(clear)
-
   local function assert_matches(fn)
     retry(nil, nil, function()
       fn(exec_lua('return _G.capture.matches'))
@@ -1262,8 +1260,6 @@ describe('vim.lsp.completion: integration', function()
     end)
   end)
 
-  after_each(clear)
-
   it('puts cursor at the end of completed word', function()
     local completion_list = {
       isIncomplete = false,

test/functional/plugin/lsp/diagnostic_spec.lua

@@ -115,10 +115,6 @@ describe('vim.lsp.diagnostic', function()
     end)
   end)
 
-  after_each(function()
-    clear()
-  end)
-
   describe('vim.lsp.diagnostic.on_publish_diagnostics', function()
     it('correctly handles UTF-16 offsets', function()
       local line = 'All 💼 and no 🎉 makes Jack a dull 👦'

test/functional/plugin/lsp/snippet_spec.lua

@@ -9,7 +9,6 @@ local exec_lua = n.exec_lua
 
 describe('vim.lsp._snippet_grammar', function()
   before_each(n.clear)
-  after_each(n.clear)
 
   local parse = function(...)
     local res = exec_lua('return require("vim.lsp._snippet_grammar").parse(...)', ...)