Revert "Support warning decorations in Timeline flame chart based on trace events"

Source/devtools/front_end/timeline/TimelineFlameChart.js

Index: Source/devtools/front_end/timeline/TimelineFlameChart.js
diff --git a/Source/devtools/front_end/timeline/TimelineFlameChart.js b/Source/devtools/front_end/timeline/TimelineFlameChart.js
index ff7cc8487ac584aa25e179db606cdd3a8b2f1784..469add57b9f78df96b8be7a3c58323e7e87b80f1 100644
--- a/Source/devtools/front_end/timeline/TimelineFlameChart.js
+++ b/Source/devtools/front_end/timeline/TimelineFlameChart.js
@@ -633,42 +633,7 @@ WebInspector.TracingBasedTimelineFlameChartDataProvider.prototype = {
      */
     decorateEntry: function(entryIndex, context, text, barX, barY, barWidth, barHeight, offsetToPosition)
     {
-        if (barWidth < 5)
-            return false;
-
-        var record = this._records[entryIndex];
-        var timelineData = this._timelineData;
-
-        var category = WebInspector.TimelineUIUtils.styleForTimelineEvent(record.name).category;
-        // Paint text using white color on dark background.
-        if (text) {
-            context.save();
-            context.fillStyle = "white";
-            context.shadowColor = "rgba(0, 0, 0, 0.1)";
-            context.shadowOffsetX = 1;
-            context.shadowOffsetY = 1;
-            context.font = this._font;
-            context.fillText(text, barX + this.textPadding(), barY + barHeight - this.textBaseline());
-            context.restore();
-        }
-
-        if (this._model.bindings().eventWarning(record)) {
-            context.save();
-
-            context.rect(barX, barY, barWidth, this.barHeight());
-            context.clip();
-
-            context.beginPath();
-            context.fillStyle = "red";
-            context.moveTo(barX + barWidth - 15, barY + 1);
-            context.lineTo(barX + barWidth - 1, barY + 1);
-            context.lineTo(barX + barWidth - 1, barY + 15);
-            context.fill();
-
-            context.restore();
-        }
-
-        return true;
+        return false;
     },
 
     /**
@@ -677,11 +642,10 @@ WebInspector.TracingBasedTimelineFlameChartDataProvider.prototype = {
      */
     forceDecoration: function(entryIndex)
     {
-        var record = this._records[entryIndex];
-        return !!this._model.bindings().eventWarning(record);
+        return false;
     },
 
-   /**
+    /**
      * @param {number} entryIndex
      * @return {?{startTimeOffset: number, endTimeOffset: number}}
      */