Delete timeFrom from dashboard

Author: draincoder

examples/real_world/grafana/dashboards/api-metrics.json

@@ -77,7 +77,6 @@
           "refId": "A"
         }
       ],
-      "timeFrom": "24h",
       "title": "Total Requests",
       "type": "stat"
     },
@@ -133,7 +132,6 @@
           "refId": "A"
         }
       ],
-      "timeFrom": "24h",
       "title": "Requests Count",
       "type": "stat"
     },
@@ -255,7 +253,6 @@
           "refId": "A"
         }
       ],
-      "timeFrom": "24h",
       "title": "Total Exceptions",
       "type": "stat"
     },