Fix voice call tile size (#11285)

Author: Germain

res/css/views/messages/_LegacyCallEvent.pcss

@@ -119,8 +119,6 @@ limitations under the License.
 
                 .mx_LegacyCallEvent_sender {
                     font-weight: var(--cpd-font-weight-semibold);
-                    font-size: 1.5rem;
-                    line-height: 1.8rem;
                     margin-bottom: $spacing-4;
 
                     overflow: hidden;
@@ -133,8 +131,6 @@ limitations under the License.
                     align-items: center;
                     font-weight: 400;
                     color: $secondary-content;
-                    font-size: 1.2rem;
-                    line-height: $font-13px;
 
                     .mx_LegacyCallEvent_type_icon {
                         height: 13px;