Revert "Social Links: Fix block appender size (WordPress#65769)"

This reverts commit 3829579.

Author: huubl

packages/block-library/src/social-links/editor.scss

@@ -101,10 +101,19 @@
 .wp-block-social-links .block-list-appender {
 	position: static; // display inline.
 
-	.block-editor-button-block-appender {
-		height: 1.5em;
-		width: 1.5em;
-		font-size: inherit;
+	.block-editor-button-block-appender.components-button.components-button {
+		padding: $grid-unit-10 - 2px;
+	}
+}
+
+.wp-block-social-links {
+	&.has-small-icon-size .block-editor-button-block-appender.components-button.components-button {
 		padding: 0;
 	}
+	&.has-large-icon-size .block-editor-button-block-appender.components-button.components-button {
+		padding: $grid-unit-20 - 2px;
+	}
+	&.has-huge-icon-size .block-editor-button-block-appender.components-button.components-button {
+		padding: $grid-unit-30 - 1px;
+	}
 }