windows.ps1: fix leaked NdisAdapters not being cleaned up on RS1

Windows RS1 has problems with leaking NdisAdapters during the integration
tests; the windows.ps1 script has a cleanup stesp to remove those
leaked adapters.

For internal testing at Microsoft on internal builds, this cleanup step
was skipped, and only ran on the CI machines in our Jenkins.

Due to the move to our new Jenkins, the names of Windows machines changed,
and because of that, the cleanup step was never executed, resulting in the
leaked adapters not being cleaned up:

```
20:32:23  WARNING: There are 608 NdisAdapters leaked under Psched\Parameters
20:32:23  WARNING: Not cleaning as not a production RS1 server
20:32:24  WARNING: There are 608 NdisAdapters leaked under WFPLWFS\Parameters
20:32:24  WARNING: Not cleaning as not a production RS1 server
```

```
22:01:31  WARNING: There are 1209 NdisAdapters leaked under Psched\Parameters
22:01:31  WARNING: Not cleaning as not a production RS1 server
22:01:31  WARNING: There are 1209 NdisAdapters leaked under WFPLWFS\Parameters
22:01:31  WARNING: Not cleaning as not a production RS1 server
```

This patch removes the check for non-production builds, and unconditionally
cleans up leaked adapters if they are found.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 156ad54fb707ed8b03a1084a841ef5602198799a)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

hack/ci/windows.ps1

@@ -203,12 +203,8 @@ Function Nuke-Everything {
         $count=(Get-ChildItem $reg | Measure-Object).Count
         if ($count -gt 0) {
             Write-Warning "There are $count NdisAdapters leaked under Psched\Parameters"
-            if ($env:COMPUTERNAME -match "jenkins-rs1-") {
-                Write-Warning "Cleaning Psched..."
-                Get-ChildItem $reg | Remove-Item -Recurse -Force -ErrorAction SilentlyContinue | Out-Null
-            } else {
-                Write-Warning "Not cleaning as not a production RS1 server"
-            }
+            Write-Warning "Cleaning Psched..."
+            Get-ChildItem $reg | Remove-Item -Recurse -Force -ErrorAction SilentlyContinue | Out-Null
         }
 
         # TODO: This should be able to be removed in August 2017 update. Only needed for RS1
@@ -216,12 +212,8 @@ Function Nuke-Everything {
         $count=(Get-ChildItem $reg | Measure-Object).Count
         if ($count -gt 0) {
             Write-Warning "There are $count NdisAdapters leaked under WFPLWFS\Parameters"
-            if ($env:COMPUTERNAME -match "jenkins-rs1-") {
-                Write-Warning "Cleaning WFPLWFS..."
-                Get-ChildItem $reg | Remove-Item -Recurse -Force -ErrorAction SilentlyContinue | Out-Null
-            } else {
-                Write-Warning "Not cleaning as not a production RS1 server"
-            }
+            Write-Warning "Cleaning WFPLWFS..."
+            Get-ChildItem $reg | Remove-Item -Recurse -Force -ErrorAction SilentlyContinue | Out-Null
         }
     } catch {
         # Don't throw any errors onwards Throw $_