Remove $line-height-computed

We have it set to `1` right now just to avoid compilation errors, but
it’s been replaced everywhere with our new spacer classes anywho. We’ll
likely want to remap that var to custom component vars though (e.g.,
`$pagination-margin` instead of `$spacer-y`).

scss/_alert.scss

@@ -9,7 +9,7 @@
 
 .alert {
   padding: $alert-padding;
-  margin-bottom: $line-height-computed;
+  margin-bottom: $spacer-y;
   border: 1px solid transparent;
   @include border-radius($alert-border-radius);
 

scss/_breadcrumb.scss

@@ -5,7 +5,7 @@
 
 .breadcrumb {
   padding: $breadcrumb-padding-vertical $breadcrumb-padding-horizontal;
-  margin-bottom: $line-height-computed;
+  margin-bottom: $spacer-y;
   list-style: none;
   background-color: $breadcrumb-bg;
   @include border-radius($border-radius-base);

scss/_forms.scss

@@ -117,7 +117,7 @@
 // horizontal form layout.
 
 .form-control-static {
-  min-height: ($line-height-computed + $font-size-base);
+  min-height: $input-height-base;
   // Size it appropriately next to real form controls
   padding-top: ($padding-base-vertical + $border-width);
   padding-bottom: ($padding-base-vertical + $border-width);

scss/_navbar.scss

@@ -103,7 +103,7 @@
   margin-right: $spacer;
   margin-bottom: 0; // For headings
   font-size: $font-size-lg;
-  line-height: $line-height-computed;
+  line-height: 1;
   background: none;
   border: 0;
 

scss/_pager.scss

@@ -5,7 +5,8 @@
 
 .pager {
   padding-left: 0;
-  margin: $line-height-computed 0;
+  margin-top: $spacer-y;
+  margin-bottom: $spacer-y;
   text-align: center;
   list-style: none;
   @include clearfix();

scss/_pagination.scss

@@ -6,6 +6,8 @@
 .pagination {
   display: inline-block;
   padding-left: 0;
+  margin-top: $spacer-y;
+  margin-bottom: $spacer-y;
   margin: $line-height-computed 0;
   @include border-radius();
 

scss/_progress.scss

@@ -8,7 +8,7 @@
 //
 
 @keyframes progress-bar-stripes {
-  from  { background-position: $line-height-computed 0; }
+  from  { background-position: $spacer-y 0; }
   to    { background-position: 0 0; }
 }
 
@@ -20,8 +20,8 @@
 .progress {
   display: block;
   width: 100%;
-  height: $line-height-computed;
-  margin-bottom: $line-height-computed;
+  height: $spacer-y; // todo: make a new var for this
+  margin-bottom: $spacer-y;
 }
 .progress[value] {
   // IE10 uses `color` to set the bar background-color
@@ -85,7 +85,7 @@
   }
   .progress-bar {
     display: inline-block;
-    height: $line-height-computed;
+    height: $spacer-y;
     text-indent: -999rem; // Simulate hiding of value as in native `<progress>`
     background-color: #0074d9;
     border-top-left-radius: $border-radius-base;
@@ -110,16 +110,16 @@
 
 .progress-striped[value]::-webkit-progress-value {
   @include gradient-striped();
-  background-size: $line-height-computed $line-height-computed;
+  background-size: $spacer-y $spacer-y;
 }
 .progress-striped[value]::-moz-progress-bar {
   @include gradient-striped();
-  background-size: $line-height-computed $line-height-computed;
+  background-size: $spacer-y $spacer-y;
 }
 @media screen and ("min-width:0\0") {
   .progress-bar-striped {
     @include gradient-striped();
-    background-size: $line-height-computed $line-height-computed;
+    background-size: $spacer-y $spacer-y;
   }
 }
 

scss/mixins/_nav-divider.scss

@@ -4,7 +4,7 @@
 
 @mixin nav-divider($color: #e5e5e5) {
   height: 1px;
-  margin: (($line-height-computed / 2) - 1) 0;
+  margin: ($spacer-y / 2) 0;
   overflow: hidden;
   background-color: $color;
 }