Delete groups (legacy communities system) (#8027)

* Remove deprecated feature_communities_v2_prototypes

* Update _components

* i18n

* delint

* Cut out a bit more dead code

* Carve into legacy components

* Carve into mostly the room list code

* Carve into instances of "groupId"

* Carve out more of what comes up with "groups"

* Carve out some settings

* ignore related groups state

* Remove instances of spacesEnabled

* Fix some obvious issues

* Remove now-unused css

* Fix variable naming for legacy components

* Update i18n

* Misc cleanup from manual review

* Update snapshot for changed flag

* Appease linters

* rethemedex

* Remove now-unused AddressPickerDialog

* Make ConfirmUserActionDialog's member a required prop

* Remove useless override from RightPanelStore

* Remove extraneous CSS

* Update i18n

* Demo: "Communities are now Spaces" landing page

* Restore linkify for group IDs

* Demo: Dialog on click for communities->spaces notice

* i18n for demos

* i18n post-merge

* Update copy

* Appease the linter

* Post-merge cleanup

* Re-add spaces_learn_more_url to the new SdkConfig place

* Round 1 of post-merge fixes

* i18n

Co-authored-by: Michael Telatynski <7t3chguy@gmail.com>

src/components/views/spaces/SpaceCreateMenu.tsx

@@ -35,9 +35,6 @@ import SdkConfig from "../../../SdkConfig";
 import Modal from "../../../Modal";
 import GenericFeatureFeedbackDialog from "../dialogs/GenericFeatureFeedbackDialog";
 import SettingsStore from "../../../settings/SettingsStore";
-import defaultDispatcher from "../../../dispatcher/dispatcher";
-import { Action } from "../../../dispatcher/actions";
-import { UserTab } from "../dialogs/UserSettingsDialog";
 import { getKeyBindingsManager } from "../../../KeyBindingsManager";
 import { KeyBindingAction } from "../../../accessibility/KeyboardShortcuts";
 
@@ -267,14 +264,6 @@ const SpaceCreateMenu = ({ onFinished }) => {
 
     let body;
     if (visibility === null) {
-        const onCreateSpaceFromCommunityClick = () => {
-            defaultDispatcher.dispatch({
-                action: Action.ViewUserSettings,
-                initialTabId: UserTab.Preferences,
-            });
-            onFinished();
-        };
-
         body = <React.Fragment>
             <h2>{ _t("Create a space") }</h2>
             <p>
@@ -296,12 +285,6 @@ const SpaceCreateMenu = ({ onFinished }) => {
             />
 
             <p>
-                { _t("You can also make Spaces from <a>communities</a>.", {}, {
-                    a: sub => <AccessibleButton kind="link" onClick={onCreateSpaceFromCommunityClick}>
-                        { sub }
-                    </AccessibleButton>,
-                }) }
-                <br />
                 { _t("To join a space you'll need an invite.") }
             </p>