Remove height from .date class in cover.sass

Removed height property from .date class.

Author: maxiemoose

_sass/cover.sass

@@ -19,7 +19,6 @@
       color: #9AD7D8
       font-size: 1.8em
       font-weight: 500
-      height: 30px
       letter-spacing: .1em
       margin: 1.5em 0
     .open