remove auth and tree from ipython.less

@minrk said it's the right thing to do

IPython/html/static/style/ipython.less

@@ -5,16 +5,5 b''
 // base
 @import "../base/less/style.less";
 
-// auth
-@import "../auth/less/style.less";
-
-// tree
-@import "../tree/less/style.less";
-
 // notebook
 @import "../notebook/less/style_noapp.less";
-
-// Font-Awesome
-@import "../components/font-awesome/less/font-awesome.less";
-@FontAwesomePath:    "../components/font-awesome/font";
-

IPython/html/static/style/ipython.min.css

@@ -26,34 +26,6 b' div.error{margin:2em;text-align:center}'
 div.error>h1{font-size:500%;line-height:normal}
 div.error>p{font-size:200%;line-height:normal}
 div.traceback-wrapper{text-align:left;max-width:800px;margin:auto}
-.center-nav{display:inline-block;margin-bottom:-4px}
-.alternate_upload{background-color:none;display:inline}
-.alternate_upload.form{padding:0;margin:0}
-.alternate_upload input.fileinput{background-color:#f00;position:relative;opacity:0;z-index:2;width:295px;margin-left:163px;cursor:pointer;height:26px}
-ul#tabs{margin-bottom:4px}
-ul#tabs a{padding-top:4px;padding-bottom:4px}
-ul.breadcrumb a:focus,ul.breadcrumb a:hover{text-decoration:none}
-ul.breadcrumb i.icon-home{font-size:16px;margin-right:4px}
-ul.breadcrumb span{color:#5e5e5e}
-.list_toolbar{padding:4px 0 4px 0}
-.list_toolbar [class*="span"]{min-height:26px}
-.list_header{font-weight:bold}
-.list_container{margin-top:4px;margin-bottom:20px;border:1px solid #ababab;border-radius:4px}
-.list_container>div{border-bottom:1px solid #ababab}.list_container>div:hover .list-item{background-color:#f00}
-.list_container>div:last-child{border:none}
-.list_item:hover .list_item{background-color:#ddd}
-.list_item a{text-decoration:none}
-.list_header>div,.list_item>div{padding-top:4px;padding-bottom:4px;padding-left:7px;padding-right:7px;height:22px;line-height:22px}
-.item_name{line-height:22px;height:26px}
-.item_icon{font-size:14px;color:#5e5e5e;margin-right:7px}
-.item_buttons{line-height:1em}
-.toolbar_info{height:26px;line-height:26px}
-input.nbname_input,input.engine_num_input{padding-top:3px;padding-bottom:3px;height:14px;line-height:14px;margin:0}
-input.engine_num_input{width:60px}
-.highlight_text{color:#00f}
-#project_name>.breadcrumb{padding:0;margin-bottom:0;background-color:transparent;font-weight:bold}
-.folder_icon:before{font-family:FontAwesome;font-weight:normal;font-style:normal;text-decoration:inherit;-webkit-font-smoothing:antialiased;*margin-right:.3em;content:"\f07c"}
-.notebook_icon:before{font-family:FontAwesome;font-weight:normal;font-style:normal;text-decoration:inherit;-webkit-font-smoothing:antialiased;*margin-right:.3em;content:"\f0f6"}
 .ansibold{font-weight:bold}
 .ansiblack{color:#000}
 .ansired{color:#8b0000}
@@ -87,7 +59,7 b' div.input_area>div.highlight>pre{margin:0;border:0;padding:0;background-color:tr'
 @-moz-document url-prefix(){.CodeMirror-scroll{overflow-x:hidden}}.CodeMirror-lines{padding:.4em}
 .CodeMirror-linenumber{padding:0 8px 0 4px}
 .CodeMirror-gutters{border-bottom-left-radius:4px;border-top-left-radius:4px}
-.CodeMirror pre{padding:0;border:0;border-radius:0;-webkit-border-radius:0;-moz-border-radius:0;border-radius:0}
+.CodeMirror pre{padding:0;border:0;-webkit-border-radius:0;-moz-border-radius:0;border-radius:0}
 pre code{display:block;padding:.5em}
 .highlight-base,pre code,pre .subst,pre .tag .title,pre .lisp .title,pre .clojure .built_in,pre .nginx .title{color:#000}
 .highlight-string,pre .string,pre .constant,pre .parent,pre .tag .value,pre .rules .value,pre .rules .value .number,pre .preprocessor,pre .ruby .symbol,pre .ruby .symbol .string,pre .aggregate,pre .template_tag,pre .django .variable,pre .smalltalk .class,pre .addition,pre .flow,pre .stream,pre .bash .variable,pre .apache .tag,pre .apache .cbracket,pre .tex .command,pre .tex .special,pre .erlang_repl .function_or_atom,pre .markdown .header{color:#ba2121}