feat: Remove OIDC and SSO support

Existing SSO accounts have no local password, so the migration
deactivates them before dropping is_sso_user and the
identity_provider_user table.

client/src/reducers/ui/authenticate-form.js

@@ -3,10 +3,7 @@
  * Licensed under the Fair Use License: https://github.com/plankanban/planka/blob/master/LICENSE.md
  */
 
-import { LOCATION_CHANGE_HANDLE } from '../../lib/redux-router';
-
 import ActionTypes from '../../constants/ActionTypes';
-import Paths from '../../constants/Paths';
 
 const initialState = {
   data: {
@@ -14,9 +11,7 @@ const initialState = {
     password: '',
   },
   isSubmitting: false,
-  isSubmittingWithOidc: false,
   error: null,
-  debugLogs: null,
   pendingToken: null,
   step: null,
   termsForm: {
@@ -30,15 +25,6 @@ const initialState = {
 // eslint-disable-next-line default-param-last
 export default (state = initialState, { type, payload }) => {
   switch (type) {
-    case LOCATION_CHANGE_HANDLE:
-      if (payload.location.pathname === Paths.OIDC_CALLBACK) {
-        return {
-          ...state,
-          isSubmittingWithOidc: true,
-        };
-      }
-
-      return state;
     case ActionTypes.AUTHENTICATE:
       return {
         ...state,
@@ -49,7 +35,6 @@ export default (state = initialState, { type, payload }) => {
         isSubmitting: true,
       };
     case ActionTypes.AUTHENTICATE__SUCCESS:
-    case ActionTypes.WITH_OIDC_AUTHENTICATE__SUCCESS:
     case ActionTypes.TERMS_ACCEPT__SUCCESS:
     case ActionTypes.TERMS_CANCEL__SUCCESS:
     case ActionTypes.TERMS_CANCEL__FAILURE:
@@ -73,31 +58,6 @@ export default (state = initialState, { type, payload }) => {
         isSubmitting: false,
         error: payload.error,
       };
-    case ActionTypes.WITH_OIDC_AUTHENTICATE__FAILURE:
-      if (payload.terms) {
-        return {
-          ...state,
-          data: initialState.data,
-          pendingToken: payload.error.pendingToken,
-          step: payload.error.step,
-          termsForm: {
-            ...state.termsForm,
-            payload: payload.terms,
-          },
-        };
-      }
-
-      return {
-        ...state,
-        isSubmittingWithOidc: false,
-        error: payload.error,
-      };
-    case ActionTypes.WITH_OIDC_AUTHENTICATE__DEBUG:
-      return {
-        ...state,
-        isSubmittingWithOidc: false,
-        debugLogs: payload.logs,
-      };
     case ActionTypes.AUTHENTICATE_ERROR_CLEAR:
       return {
         ...state,