ace: removed the old text areas

public/app/plugins/datasource/mysql/partials/query.editor.html

 <query-editor-row query-ctrl="ctrl" can-collapse="false">
 <query-editor-row query-ctrl="ctrl" can-collapse="false">
 	<div class="gf-form-inline">
 	<div class="gf-form-inline">
 		<div class="gf-form gf-form--grow">
 		<div class="gf-form gf-form--grow">
-			<textarea rows="5" class="gf-form-input" ng-model="ctrl.target.rawSql" spellcheck="false" placeholder="query expression" data-min-length=0 data-items=100 ng-model-onblur ng-change="ctrl.panelCtrl.refresh()"></textarea>
-		</div>
-	</div>
-
-	<div class="gf-form-inline">
-		<div class="gf-form gf-form--grow">
-			<code-editor content="ctrl.target.rawSql" on-change="ctrl.panelCtrl.refresh()"
-				data-mode="sql">
+			<code-editor content="ctrl.target.rawSql" on-change="ctrl.panelCtrl.refresh()" data-mode="sql">
 			</code-editor>
 			</code-editor>
 		</div>
 		</div>
 	</div>
 	</div>

public/app/plugins/datasource/prometheus/partials/query.editor.html

 <query-editor-row query-ctrl="ctrl" can-collapse="true" has-text-edit-mode="true">
 <query-editor-row query-ctrl="ctrl" can-collapse="true" has-text-edit-mode="true">
 	<div class="gf-form-inline">
 	<div class="gf-form-inline">
 		<div class="gf-form gf-form--grow">
 		<div class="gf-form gf-form--grow">
-			<textarea rows="3" class="gf-form-input" ng-model="ctrl.target.expr" spellcheck="false" placeholder="query expression" data-min-length=0 data-items=100 give-focus="ctrl.target.refId == 'A'" ng-model-onblur ng-change="ctrl.refreshMetricData()"></textarea>
-		</div>
-	</div>
-
-	<div class="gf-form-inline">
-		<div class="gf-form gf-form--grow">
 			<code-editor content="ctrl.target.expr" on-change="ctrl.refreshMetricData()"
 			<code-editor content="ctrl.target.expr" on-change="ctrl.refreshMetricData()"
 				get-metrics="ctrl.getMetricsAutocomplete" data-mode="prometheus">
 				get-metrics="ctrl.getMetricsAutocomplete" data-mode="prometheus">
 			</code-editor>
 			</code-editor>