appveyor: do not patch csproj files

The way the project files are currently configured, this setting
resulted in only the Plugin project being patched. Consequently, the
version of the Plugin project was wrong in the built package.

Author: JohnTheGr8

appveyor.yml

@@ -11,14 +11,6 @@ assembly_info:
   assembly_version: $(flowVersion)
   assembly_file_version: $(flowVersion)
   assembly_informational_version: $(flowVersion)
-dotnet_csproj:
-  patch: true
-  file: 'Flow.*\*.csproj'
-  version: $(flowVersion)
-  package_version: $(flowVersion)
-  assembly_version: $(flowVersion)
-  file_version: $(flowVersion)
-  informational_version: $(flowVersion)
 
 skip_commits:
   files: