fix telemetry versioning issue (#8041)

Build/debugpy-version.txt

@@ -1 +1 @@
-1.8.6
+1.8.7

Python/Product/VSInterpreters/Interpreter/PythonRegistrySearch.cs

@@ -188,9 +188,6 @@ namespace Microsoft.PythonTools.Interpreter {
                 return null; // Python 2.x is no longer supported.
             }
 
-            if (sysVersion.ToLanguageVersion() == PythonLanguageVersion.None) {
-                sysVersion = new Version(0, 0);
-            }
 
             if (!InterpreterArchitecture.TryParse(tagKey.GetValue("SysArchitecture", null) as string, out var arch)) {
                 arch = assumedArch;

Python/Product/VSInterpreters/Interpreter/WorkspaceInterpreterFactoryProvider.cs

@@ -316,9 +316,6 @@ namespace Microsoft.PythonTools.Interpreter {
             var arch = CPythonInterpreterFactoryProvider.ArchitectureFromExe(interpreterPath);
             var version = CPythonInterpreterFactoryProvider.VersionFromSysVersionInfo(interpreterPath);
 
-            if (version.ToLanguageVersion() == PythonLanguageVersion.None) {
-                version = new Version(0, 0);
-            }
 
             var name = Path.GetFileName(prefixPath);
             var description = name;