ci: [WIN-NPM] remove ws19 build (#1844)

* remove NPM build for ws19

* set OS versions by variable in manifest-build

---------

Co-authored-by: Vamsi Kalapala <[email protected]>

Author: huntergregory

.pipelines/pipeline.yaml

@@ -184,11 +184,6 @@ stages:
               arch: amd64
               name: npm
               os: linux
-            npm_windows2019_amd64:
-              arch: amd64
-              name: npm
-              os: windows
-              os_version: ltsc2019
             npm_windows2022_amd64:
               arch: amd64
               name: npm
@@ -289,7 +284,7 @@ stages:
               platforms: linux/amd64 linux/arm64 windows/amd64
             npm:
               name: npm
-              os_versions: ltsc2019 ltsc2022
+              os_versions: ltsc2022
               platforms: linux/amd64 linux/arm64 windows/amd64
         steps:
           - template: containers/manifest-template.yaml

Makefile

@@ -554,7 +554,7 @@ cns-manifest-build: ## build azure-cns multiplat container manifest.
 		PLATFORMS="$(PLATFORMS)" \
 		IMAGE=$(CNS_IMAGE) \
 		TAG=$(CNS_VERSION) \
-		OS_VERSIONS="ltsc2022 ltsc2019"
+		OS_VERSIONS=$(OS_VERSIONS)
 
 cns-manifest-push: ## push cns multiplat container manifest
 	$(MAKE) manifest-push \
@@ -571,7 +571,7 @@ npm-manifest-build: ## build azure-npm multiplat container manifest.
 		PLATFORMS="$(PLATFORMS)" \
 		IMAGE=$(NPM_IMAGE) \
 		TAG=$(NPM_VERSION) \
-		OS_VERSIONS="ltsc2022 ltsc2019"
+		OS_VERSIONS=$(OS_VERSIONS)
 
 npm-manifest-push: ## push multiplat container manifest
 	$(MAKE) manifest-push \