diff --git a/src/html/datepicker/less/datepicker.less b/src/html/datepicker/less/datepicker.less
deleted file mode 100644
index bab7fd4..0000000
--- a/src/html/datepicker/less/datepicker.less
+++ /dev/null
@@ -1,119 +0,0 @@
-/*!
- * Datepicker for Bootstrap
- *
- * Copyright 2012 Stefan Petre
- * Licensed under the Apache License v2.0
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- */
- 
-.datepicker {
-	top: 0;
-	left: 0;
-	padding: 4px;
-	margin-top: 1px;
-	.border-radius(4px);
-	&:before {
-		content: '';
-		display: inline-block;
-		border-left:   7px solid transparent;
-		border-right:  7px solid transparent;
-		border-bottom: 7px solid #ccc;
-		border-bottom-color: rgba(0,0,0,.2);
-		position: absolute;
-		top: -7px;
-		left: 6px;
-	}
-	&:after {
-		content: '';
-		display: inline-block;
-		border-left:   6px solid transparent;
-		border-right:  6px solid transparent;
-		border-bottom: 6px solid @white;
-		position: absolute;
-		top: -6px;
-		left: 7px;
-	}
-	>div {
-		display: none;
-	}
-	table{
-		width: 100%;
-		margin: 0;
-	}
-	td,
-	th{
-		text-align: center;
-		width: 20px;
-		height: 20px;
-		.border-radius(4px);
-	}
-	td {
-		&.day:hover {
-			background: @grayLighter;
-			cursor: pointer;
-		}
-		&.old,
-		&.new {
-			color: @grayLight;
-		}
-		&.active,
-		&.active:hover {
-			.buttonBackground(@primaryButtonBackground, spin(@primaryButtonBackground, 20));
-			color: #fff;
-			text-shadow: 0 -1px 0 rgba(0,0,0,.25);
-		}
-		span {
-			display: block;
-			width: 47px;
-			height: 54px;
-			line-height: 54px;
-			float: left;
-			margin: 2px;
-			cursor: pointer;
-			.border-radius(4px);
-			&:hover {
-				background: @grayLighter;
-			}
-			&.active {
-				.buttonBackground(@primaryButtonBackground, spin(@primaryButtonBackground, 20));
-				color: #fff;
-				text-shadow: 0 -1px 0 rgba(0,0,0,.25);
-			}
-			&.old {
-				color: @grayLight;
-			}
-		}
-	}
-	
-	th {
-		&.switch {
-			width: 145px;
-		}
-		&.next,
-		&.prev {
-			font-size: @baseFontSize * 1.5;
-		}
-	}
-	
-	thead tr:first-child th {
-		cursor: pointer;
-		&:hover{
-			background: @grayLighter;
-		}
-	}
-	/*.dow {
-		border-top: 1px solid #ddd !important;
-	}*/
-}
-.input-append,
-.input-prepend {
-	&.date {
-		.add-on i {
-			display: block;
-			cursor: pointer;
-			width: 16px;
-			height: 16px;
-		}
-	}
-}
\ No newline at end of file