Change make build scripts delete previous build result

Removes benchmarksdotnet builds

Author: JohannesDeml

linux-build.sh

@@ -1,4 +1,7 @@
 #!/bin/bash
+# Clean build for Linux
+
+rm -rf ./bin/NetworkBenchmarkDotNet-Linux/
 
 # Options: https://docs.microsoft.com/en-us/dotnet/core/tools/dotnet-build
 # Build targets: https://docs.microsoft.com/en-us/dotnet/core/rid-catalog

win-build.bat

@@ -1,6 +1,8 @@
-:: build and run benchmark for windows
+:: clean build for windows
+
+if exist .\bin\NetworkBenchmarkDotNet-Windows\ rmdir .\bin\NetworkBenchmarkDotNet-Windows\ /q /s
+
 :: Options: https://docs.microsoft.com/en-us/dotnet/core/tools/dotnet-build
 :: Build targets: https://docs.microsoft.com/en-us/dotnet/core/rid-catalog
-
 dotnet build --configuration Release --framework net5.0 --output .\bin\NetworkBenchmarkDotNet-Windows\
 PAUSE