Remove .nav-links li a CSS for mobile

Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

app/assets/stylesheets/framework/mobile.scss

@@ -5,8 +5,6 @@
   }
 
   .nav-links > li > a {
-    padding: 10px;
-    font-size: 12px;
     margin-right: 3px;
 
     .badge.badge-pill {
@@ -17,12 +15,4 @@
   .container .title {
     padding-left: 15px !important;
   }
-
-  .nav-links,
-  .nav-links {
-    li a {
-      font-size: 14px;
-      padding: 19px 10px;
-    }
-  }
 }