Administration: Remove unused CSS in forms.css.

Remove some CSS that doesn't appear to have ever been used. See [42967].

Props joedolson, peterwilsoncc, mukesh27.
Fixes #63907.

git-svn-id: https://develop.svn.wordpress.org/trunk@60710 602fd350-edb4-49c9-b593-d223f7449a82

Author: joedolson

src/wp-admin/css/forms.css

@@ -1466,28 +1466,6 @@ table.form-table td .updated p {
 	margin: 0;
 }
 
-.email-personal-data::before {
-	display: inline-block;
-	font: normal 20px/1 dashicons;
-	margin: 3px 5px 0 -2px;
-	speak: never;
-	-webkit-font-smoothing: antialiased;
-	-moz-osx-font-smoothing: grayscale;
-	vertical-align: top;
-}
-
-.email-personal-data--sending::before {
-	color: #d63638;
-	content: "\f463";
-	animation: rotation 2s infinite linear;
-}
-
-.email-personal-data--sent::before {
-	color: #68de7c;
-	content: "\f147";
-}
-
-
 /* =Media Queries
 -------------------------------------------------------------- */