Remove hosting link provider from Element (#10270)

* Remove hosting link provider from Element

* fix whitespace

res/css/_components.pcss

@@ -136,7 +136,6 @@
 @import "./views/dialogs/_FeedbackDialog.pcss";
 @import "./views/dialogs/_ForwardDialog.pcss";
 @import "./views/dialogs/_GenericFeatureFeedbackDialog.pcss";
-@import "./views/dialogs/_HostSignupDialog.pcss";
 @import "./views/dialogs/_IncomingSasDialog.pcss";
 @import "./views/dialogs/_InviteDialog.pcss";
 @import "./views/dialogs/_JoinRuleDropdown.pcss";

res/css/structures/_UserMenu.pcss

@@ -142,12 +142,8 @@ limitations under the License.
             justify-content: center;
         }
 
-        &.mx_UserMenu_contextMenu_guestPrompts,
-        &.mx_UserMenu_contextMenu_hostingLink {
-            padding-top: 0;
-        }
-
         &.mx_UserMenu_contextMenu_guestPrompts {
+            padding-top: 0;
             display: inline-block;
 
             > span {
@@ -190,10 +186,6 @@ limitations under the License.
         mask-image: url("$(res)/img/element-icons/roomlist/dnd-cross.svg");
     }
 
-    .mx_UserMenu_iconHosting::before {
-        mask-image: url("$(res)/img/element-icons/brands/element.svg");
-    }
-
     .mx_UserMenu_iconBell::before {
         mask-image: url("$(res)/img/element-icons/notifications.svg");
     }

res/css/views/dialogs/_HostSignupDialog.pcss

@@ -1,132 +0,0 @@
-/*
-Copyright 2021 The Matrix.org Foundation C.I.C.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-.mx_HostSignupDialog {
-    width: 90vw;
-    max-width: 580px;
-    height: 80vh;
-    max-height: 600px;
-    /* Ensure dialog borders are always white as the HostSignupDialog */
-    /* does not yet support dark mode or theming in general. */
-    /* In the future we might want to pass the theme to the called */
-    /* iframe, should some hosting provider have that need. */
-    background-color: #ffffff;
-
-    .mx_HostSignupDialog_info {
-        text-align: center;
-
-        .mx_HostSignupDialog_content_top {
-            margin-bottom: 24px;
-        }
-
-        .mx_HostSignupDialog_paragraphs {
-            text-align: left;
-            padding-left: 25%;
-            padding-right: 25%;
-        }
-
-        .mx_HostSignupDialog_buttons {
-            margin-bottom: 24px;
-            display: flex;
-            justify-content: center;
-
-            button {
-                padding: 12px;
-                margin: 0 16px;
-            }
-        }
-
-        .mx_HostSignupDialog_footer {
-            display: flex;
-            justify-content: center;
-            align-items: baseline;
-
-            img {
-                padding-right: 5px;
-            }
-        }
-    }
-
-    iframe {
-        width: 100%;
-        height: 100%;
-        border: none;
-        background-color: #fff;
-        min-height: 540px;
-    }
-}
-
-.mx_HostSignupDialog_text_dark {
-    color: $primary-content;
-}
-
-.mx_HostSignupDialog_text_light {
-    color: $secondary-content;
-}
-
-.mx_HostSignup_maximize_button {
-    mask: url("$(res)/img/element-icons/maximise-expand.svg");
-    mask-repeat: no-repeat;
-    mask-position: center;
-    mask-size: cover;
-    width: 14px;
-    height: 14px;
-    background-color: $dialog-close-fg-color;
-    cursor: pointer;
-    position: absolute;
-    top: 10px;
-    right: 10px;
-}
-
-.mx_HostSignup_minimize_button {
-    mask: url("$(res)/img/element-icons/minimise-collapse.svg");
-    mask-repeat: no-repeat;
-    mask-position: center;
-    mask-size: cover;
-    width: 14px;
-    height: 14px;
-    background-color: $dialog-close-fg-color;
-    cursor: pointer;
-    position: absolute;
-    top: 10px;
-    right: 25px;
-}
-
-.mx_HostSignupDialog_minimized {
-    position: fixed;
-    bottom: 80px;
-    right: 26px;
-    width: 314px;
-    height: 217px;
-    overflow: hidden;
-
-    &.mx_Dialog {
-        padding: 12px;
-    }
-
-    .mx_Dialog_title {
-        text-align: left !important;
-        padding-left: 20px;
-        font-size: $font-15px;
-    }
-
-    iframe {
-        width: 100%;
-        height: 100%;
-        border: none;
-        background-color: #fff;
-    }
-}