remove dupe ff3/4 button fixes; also remove headingscolor var

less/reset.less

@@ -103,11 +103,6 @@ button,
 input {
   line-height: normal;
 }
-button::-moz-focus-inner,
-input::-moz-focus-inner { // Inner padding and border oddities in FF3/4
-  padding: 0;
-  border: 0;
-}
 button,
 html input[type="button"], // Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio` and `video` controls.
 input[type="reset"],

less/type.less

@@ -58,7 +58,6 @@ h1, h2, h3, h4, h5, h6 {
   font-family: @headingsFontFamily;
   font-weight: @headingsFontWeight;
   line-height: @baseLineHeight;
-  color: @headingsColor;
   text-rendering: optimizelegibility; // Fix the character spacing for headings
   small {
     font-weight: normal;

less/variables.less

@@ -55,7 +55,6 @@
 
 @headingsFontFamily:    inherit; // empty to use BS default, @baseFontFamily
 @headingsFontWeight:    bold;    // instead of browser default, bold
-@headingsColor:         inherit; // empty to use BS default, @textColor
 
 
 // Component sizing