Remove testcluster check for csi proxy

Remove testcluster check for csi proxy after it is beta

Author: jingxu97

cluster/gce/windows/k8s-node-setup.psm1

@@ -403,29 +403,26 @@ function DownloadAndInstall-KubernetesBinaries {
 # Required ${kube_env} keys:
 #   CSI_PROXY_STORAGE_PATH and CSI_PROXY_VERSION
 function DownloadAndInstall-CSIProxyBinaries {
-  if (Test-IsTestCluster $kube_env) {
-    if (ShouldWrite-File ${env:NODE_DIR}\csi-proxy.exe) {
-      $tmp_dir = 'C:\k8s_tmp'
-      New-Item -Force -ItemType 'directory' $tmp_dir | Out-Null
-      $filename = 'csi-proxy.exe'
-      $urls = "${env:CSI_PROXY_STORAGE_PATH}/${env:CSI_PROXY_VERSION}/$filename"
-      MustDownload-File -OutFile $tmp_dir\$filename -URLs $urls
-      Move-Item -Force $tmp_dir\$filename ${env:NODE_DIR}\$filename
-      # Clean up the temporary directory
-      Remove-Item -Force -Recurse $tmp_dir
-    }
+  if (ShouldWrite-File ${env:NODE_DIR}\csi-proxy.exe) {
+    $tmp_dir = 'C:\k8s_tmp'
+    New-Item -Force -ItemType 'directory' $tmp_dir | Out-Null
+    $filename = 'csi-proxy.exe'
+    $urls = "${env:CSI_PROXY_STORAGE_PATH}/${env:CSI_PROXY_VERSION}/$filename"
+    MustDownload-File -OutFile $tmp_dir\$filename -URLs $urls
+    Move-Item -Force $tmp_dir\$filename ${env:NODE_DIR}\$filename
+    # Clean up the temporary directory
+    Remove-Item -Force -Recurse $tmp_dir
   }
 }
 
 function Start-CSIProxy {
-  if (Test-IsTestCluster $kube_env) {
-    Log-Output "Creating CSI Proxy Service"
-    $flags = "-windows-service -log_file=${env:LOGS_DIR}\csi-proxy.log -logtostderr=false"
-    & sc.exe create csiproxy binPath= "${env:NODE_DIR}\csi-proxy.exe $flags"
-    & sc.exe failure csiproxy reset= 0 actions= restart/10000
-    Log-Output "Starting CSI Proxy Service"
-    & sc.exe start csiproxy
-  }
+  Log-Output "Creating CSI Proxy Service"
+  $flags = "-windows-service -log_file=${env:LOGS_DIR}\csi-proxy.log -logtostderr=false"
+  & sc.exe create csiproxy binPath= "${env:NODE_DIR}\csi-proxy.exe $flags"
+  & sc.exe failure csiproxy reset= 0 actions= restart/10000
+  Log-Output "Starting CSI Proxy Service"
+  & sc.exe start csiproxy
+
 }
 
 # TODO(pjh): this is copied from