Merge pull request #6030 from BOINC/vko_msi_arp

[windows][installer] enable 'change'\'modify' and 'repair' options.

Author: AenBleidd

installer/boinc.json

@@ -9751,14 +9751,6 @@
             "Property": "ARPHELPLINK",
             "Value": "https://boinc.berkeley.edu/"
         },
-        {
-            "Property": "ARPNOMODIFY",
-            "Value": "1"
-        },
-        {
-            "Property": "ARPNOREPAIR",
-            "Value": "1"
-        },
         {
             "Property": "ARPPRODUCTICON",
             "Value": "ARPPRODUCTICON.exe"