Remove matplotlib warning

abyrne55 · web-flow · commit 5497220ad55a · 2019-08-19T15:27:47.000-04:00
This warning gets printed every time any piece of the package is imported, even pieces unrelated to plotting. Since the code already throws an ImportError if `plot()` is used without matplotlib being installed, I don't think the warning is necessary.
diff --git a/prometheus_api_client/metric.py b/prometheus_api_client/metric.py
@@ -13,7 +13,6 @@
     _MPL_FOUND = True
 except ImportError as exce:
     _MPL_FOUND = False
-    print("WARNING: Plotting will not work as matplotlib was not found")
 
 
 class Metric:
