removed unused property

src/components/BackgroundChart.svelte

@@ -17,8 +17,7 @@
     {/if}
     {#if (/^gt_/.test(dataset.id))}
       <GoogleTrendsChart data={dataset.data}
-                         margin={$margin}
-                         showLegend={!$originalTimeDomain} />
+                         margin={$margin} />
     {/if}
   {/each}
 </g>

src/components/GoogleTrendsChart.svelte

@@ -17,7 +17,7 @@
     bottom: 0,
     left: 20
   };
-  export let showLegend = true;
+  // export let showLegend = true;
 
   const commaFormat = format(',');