[Minor] Remove `form` role

as it is unnecessary for a `form` element.

interface/index.html

@@ -244,7 +244,7 @@
 						<div class="row">
 							<div class="col-md-6">
 								<div class="well well-sm">
-									<form class="form-inline" role="form">
+									<form class="form-inline">
 										<h5>Learn Bayessian classifier:</h5>
 										<div class="form-group">
 											<div class="btn-group">
@@ -257,7 +257,7 @@
 							</div>
 							<div class="col-md-6">
 								<div class="well well-sm">
-									<form class="form-inline" role="form">
+									<form class="form-inline">
 										<h5>Learn Fuzzy storage:</h5>
 										<div class="form-group">
 											<label for="fuzzyFlagText">Flag:</label>