remove total module coverage from summary

Author: tonerdo

src/coverlet.core/CoverageSummary.cs

@@ -12,7 +12,6 @@ public CoverageSummary(CoverageResult result)
         public CoverageSummaryResult CalculateSummary()
         {
             CoverageSummaryResult result = new CoverageSummaryResult();
-            int totalModuleLines = 0, moduleLinesCovered = 0;
 
             foreach (var mod in _result.Modules)
             {
@@ -32,11 +31,10 @@ public CoverageSummaryResult CalculateSummary()
                         }
                     }
                 }
-                totalModuleLines += totalLines;
-                moduleLinesCovered += linesCovered;
+
                 result.Add(System.IO.Path.GetFileNameWithoutExtension(mod.Key), (linesCovered * 100) / totalLines);
             }
-            result.Add("Covered", (moduleLinesCovered * 100) / totalModuleLines);
+
             return result;
         }
     }