remove overzealous pdf resets

css/print/pdf.scss

@@ -34,24 +34,11 @@ html.print-pdf {
 		display: none !important;
 	}
 
-	h1, h2, h3, h4, h5, h6 {
-		text-shadow: 0 0 0 #000 !important;
-	}
-
 	.reveal pre code {
 		overflow: hidden !important;
 		font-family: Courier, 'Courier New', monospace !important;
 	}
 
-	ul, ol, div, p {
-		visibility: visible;
-		position: static;
-		width: auto;
-		height: auto;
-		display: block;
-		overflow: visible;
-		margin: auto;
-	}
 	.reveal {
 		width: auto !important;
 		height: auto !important;