Revert "Add basic code action support (#718)" (#775)

This reverts commit 9fe8ea1.

Author: scohen

apps/language_server/lib/language_server/protocol.ex

@@ -200,17 +200,6 @@ defmodule ElixirLS.LanguageServer.Protocol do
     end
   end
 
-  defmacro code_action_req(id, uri, diagnostics) do
-    quote do
-      request(unquote(id), "textDocument/codeAction", %{
-        "context" => %{"diagnostics" => unquote(diagnostics)},
-        "textDocument" => %{
-          "uri" => unquote(uri)
-        }
-      })
-    end
-  end
-
   # Other utilities
 
   defmacro range(start_line, start_character, end_line, end_character) do

apps/language_server/lib/language_server/providers/code_action.ex

@@ -32,8 +32,7 @@ defmodule ElixirLS.LanguageServer.Server do
     OnTypeFormatting,
     CodeLens,
     ExecuteCommand,
-    FoldingRange,
-    CodeAction
+    FoldingRange
   }
 
   alias ElixirLS.Utils.Launch
@@ -780,10 +779,6 @@ defmodule ElixirLS.LanguageServer.Server do
     end
   end
 
-  defp handle_request(code_action_req(_id, uri, diagnostics), state = %__MODULE__{}) do
-    {:async, fn -> CodeAction.code_actions(uri, diagnostics) end, state}
-  end
-
   defp handle_request(%{"method" => "$/" <> _}, state = %__MODULE__{}) do
     # "$/" requests that the server doesn't support must return method_not_found
     {:error, :method_not_found, nil, state}
@@ -835,8 +830,7 @@ defmodule ElixirLS.LanguageServer.Server do
       "workspace" => %{
         "workspaceFolders" => %{"supported" => false, "changeNotifications" => false}
       },
-      "foldingRangeProvider" => true,
-      "codeActionProvider" => true
+      "foldingRangeProvider" => true
     }
   end
 

apps/language_server/lib/language_server/server.ex

@@ -1525,70 +1525,6 @@ defmodule ElixirLS.LanguageServer.ServerTest do
     end
   end
 
-  describe "textDocument/codeAction" do
-    test "return code actions on unused variables", %{server: server} do
-      uri = "file:///file.ex"
-      fake_initialize(server)
-
-      Server.receive_packet(server, did_open(uri, "elixir", 1, ""))
-
-      Server.receive_packet(
-        server,
-        code_action_req(1, uri, [
-          %{
-            "message" =>
-              "variable \"foo\" is unused (if the variable is not meant to be used, prefix it with an underscore)",
-            "range" => %{
-              "end" => %{"character" => 13, "line" => 19},
-              "start" => %{"character" => 4, "line" => 19}
-            },
-            "severity" => 1,
-            "source" => "Elixir"
-          }
-        ])
-      )
-
-      resp = assert_receive(%{"id" => 1}, 5000)
-
-      assert response(1, [
-               %{
-                 "edit" => %{
-                   "changes" => %{
-                     "file:///file.ex" => [
-                       %{
-                         "newText" => "_",
-                         "range" => %{
-                           "end" => %{"character" => 4, "line" => 19},
-                           "start" => %{"character" => 4, "line" => 19}
-                         }
-                       }
-                     ]
-                   }
-                 },
-                 "kind" => "quickfix",
-                 "title" => "Add '_' to unused variable"
-               },
-               %{
-                 "edit" => %{
-                   "changes" => %{
-                     "file:///file.ex" => [
-                       %{
-                         "newText" => "",
-                         "range" => %{
-                           "end" => %{"character" => 13, "line" => 19},
-                           "start" => %{"character" => 4, "line" => 19}
-                         }
-                       }
-                     ]
-                   }
-                 },
-                 "kind" => "quickfix",
-                 "title" => "Remove unused variable"
-               }
-             ]) == resp
-    end
-  end
-
   defp with_new_server(func) do
     server = start_supervised!({Server, nil})
     packet_capture = start_supervised!({PacketCapture, self()})