[IMP] calendar: remove unused styles

task-3546717

Part-of: odoo/odoo#138467
Co-authored-by: Adrien Dieudonné <adr@odoo.com>

addons/calendar/static/src/scss/calendar.scss

@@ -5,73 +5,6 @@
     }
 }
 
-.o_calendar_invitation {
-    @extend .o_status;
-
-    &.accepted {
-        background-color: map-get($theme-colors, 'success');
-    }
-
-    &.tentative {
-        background-color: $o-main-color-muted;
-    }
-
-    &.declined {
-        background-color: map-get($theme-colors, 'danger');
-    }
-}
-
-.o_add_favorite_calendar {
-    margin-top: 10px;
-    position: relative;
-}
-
-.o_calendar_invitation_page {
-    flex: 0 0 auto;
-    width: 50%;
-    margin: 30px auto 0;
-    @include o-webclient-padding($top: 10px, $bottom: 10px);
-    background-color: $o-view-background-color;
-
-    .o_logo {
-        width: 15%;
-    }
-    .o_event_title {
-        margin-left: 20%;
-
-        h2 {
-            margin-top: 0;
-        }
-    }
-    .o_event_table {
-        clear: both;
-        margin: 15px 0 0;
-
-        th {
-            padding-right: 15px;
-        }
-        ul {
-            padding-left: 0;
-        }
-    }
-
-    .o_accepted {
-        @extend .text-success;
-    }
-    .o_declined {
-        @extend .text-danger;
-    }
-}
-.o_meeting_filter {
-    @include o-text-overflow();
-    min-width: 0;
-    color: grey;
-    vertical-align: top;
-    &.o_meeting_bold {
-        font-weight: bold;
-    }
-}
-
 .o_cw_body {
     max-width: 328px;
 }