bootstrap: Remove CSS rules for select elements from bootstrap.css.

This commit removes the bootstrap CSS rules for select elements in
bootstrap.css. The requried rules are already added to specific
elements in previous commits to keep the existing design.

Fixes part of #23635.

static/third/bootstrap/css/bootstrap.css

@@ -52,8 +52,7 @@ img {
   -ms-interpolation-mode: bicubic;
 }
 button,
-input,
-select {
+input {
   margin: 0;
   font-size: 100%;
   vertical-align: middle;
@@ -76,7 +75,6 @@ input[type="submit"] {
   cursor: pointer;
 }
 label,
-select,
 button,
 input[type="button"],
 input[type="reset"],
@@ -480,22 +478,19 @@ fieldset {
 }
 label,
 input,
-button,
-select {
+button {
   font-size: 14px;
   font-weight: normal;
   line-height: 20px;
 }
 input,
-button,
-select {
+button {
   font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
 }
 label {
   display: block;
   margin-bottom: 5px;
 }
-select,
 input[type="text"],
 input[type="password"],
 input[type="datetime"],
@@ -587,7 +582,6 @@ input[type="button"],
 input[type="checkbox"] {
   width: auto;
 }
-select,
 input[type="file"] {
   height: 30px;
   /* In IE7, the height of the select element cannot be changed by height, only font-size */
@@ -597,16 +591,6 @@ input[type="file"] {
 
   line-height: 30px;
 }
-select {
-  width: 220px;
-  border: 1px solid #cccccc;
-  background-color: #ffffff;
-}
-select[multiple],
-select[size] {
-  height: auto;
-}
-select:focus,
 input[type="file"]:focus,
 input[type="checkbox"]:focus {
   outline: thin dotted #333;
@@ -649,9 +633,7 @@ input {
   margin-left: 0;
 }
 input[disabled],
-select[disabled],
-input[readonly],
-select[readonly] {
+input[readonly] {
   cursor: not-allowed;
   background-color: #eeeeee;
 }
@@ -659,13 +641,11 @@ input[type="checkbox"][disabled],
 input[type="checkbox"][readonly] {
   background-color: transparent;
 }
-input:focus:invalid,
-select:focus:invalid {
+input:focus:invalid {
   color: #b94a48;
   border-color: #ee5f5b;
 }
-input:focus:invalid:focus,
-select:focus:invalid:focus {
+input:focus:invalid:focus {
   border-color: #e9322d;
   -webkit-box-shadow: 0 0 6px #f8b9b7;
   -moz-box-shadow: 0 0 6px #f8b9b7;
@@ -691,13 +671,11 @@ select:focus:invalid:focus {
   white-space: nowrap;
 }
 .input-append input,
-.input-append select,
 .input-append .dropdown-menu,
 .input-append .popover {
   font-size: 14px;
 }
-.input-append input,
-.input-append select {
+.input-append input {
   position: relative;
   margin-bottom: 0;
   *margin-left: 0;
@@ -706,8 +684,7 @@ select:focus:invalid:focus {
   -moz-border-radius: 0 4px 4px 0;
   border-radius: 0 4px 4px 0;
 }
-.input-append input:focus,
-.input-append select:focus {
+.input-append input:focus {
   z-index: 2;
 }
 .input-append .btn,
@@ -721,14 +698,12 @@ select:focus:invalid:focus {
   background-color: #a9dba9;
   border-color: #46a546;
 }
-.input-append input,
-.input-append select {
+.input-append input {
   -webkit-border-radius: 4px 0 0 4px;
   -moz-border-radius: 4px 0 0 4px;
   border-radius: 4px 0 0 4px;
 }
-.input-append input + .btn-group .btn:last-child,
-.input-append select + .btn-group .btn:last-child {
+.input-append input + .btn-group .btn:last-child {
   -webkit-border-radius: 0 4px 4px 0;
   -moz-border-radius: 0 4px 4px 0;
   border-radius: 0 4px 4px 0;
@@ -756,7 +731,6 @@ input.search-query {
   border-radius: 15px;
 }
 .form-inline input,
-.form-inline select,
 .form-inline .help-inline,
 .form-inline .input-append {
   display: inline-block;