Remove incompatible properties.

dist/css/bootstrap.css

@@ -1924,7 +1924,6 @@ output {
   font-size: 14px;
   line-height: 1.428571429;
   color: #555555;
-  vertical-align: middle;
 }
 
 .form-control {
@@ -1935,7 +1934,6 @@ output {
   font-size: 14px;
   line-height: 1.428571429;
   color: #555555;
-  vertical-align: middle;
   background-color: #ffffff;
   background-image: none;
   border: 1px solid #cccccc;
@@ -1992,13 +1990,11 @@ textarea.form-control {
   padding-left: 20px;
   margin-top: 10px;
   margin-bottom: 10px;
-  vertical-align: middle;
 }
 
 .radio label,
 .checkbox label {
   display: inline;
-  margin-bottom: 0;
   font-weight: normal;
   cursor: pointer;
 }

less/forms.less

@@ -89,7 +89,6 @@ output {
   font-size: @font-size-base;
   line-height: @line-height-base;
   color: @input-color;
-  vertical-align: middle;
 }
 
 
@@ -123,7 +122,6 @@ output {
   font-size: @font-size-base;
   line-height: @line-height-base;
   color: @input-color;
-  vertical-align: middle;
   background-color: @input-bg;
   background-image: none; // Reset unusual Firefox-on-Android default style; see https://github.com/necolas/normalize.css/issues/214
   border: 1px solid @input-border;
@@ -179,10 +177,8 @@ output {
   margin-top: 10px;
   margin-bottom: 10px;
   padding-left: 20px;
-  vertical-align: middle;
   label {
     display: inline;
-    margin-bottom: 0;
     font-weight: normal;
     cursor: pointer;
   }