[Client] Remove needless attribute

src/web/app/dev/tags/new-app-form.tag

@@ -75,7 +75,7 @@
 		</section>
 		<button onclick={ onsubmit }>アプリ作成</button>
 	</form>
-	<style type="stylus">
+	<style>
 		:scope
 			display block
 			overflow hidden

src/web/app/dev/tags/pages/app.tag

@@ -9,7 +9,7 @@
 			<input value={ app.secret } readonly="readonly"/>
 		</div>
 	</main>
-	<style type="stylus">
+	<style>
 		:scope
 			display block
 

src/web/app/dev/tags/pages/apps.tag

@@ -10,7 +10,7 @@
 			</ul>
 		</virtual>
 	</div>
-	<style type="stylus">
+	<style>
 		:scope
 			display block
 

src/web/app/dev/tags/pages/index.tag

@@ -1,5 +1,5 @@
 <mk-index><a href="/apps">アプリ</a>
-	<style type="stylus">
+	<style>
 		:scope
 			display block
 

src/web/app/dev/tags/pages/new-app.tag

@@ -6,7 +6,7 @@
 		</header>
 		<mk-new-app-form></mk-new-app-form>
 	</main>
-	<style type="stylus">
+	<style>
 		:scope
 			display block
 			padding 64px 0