Remove Windows 1709 (EOL)

https://twitter.com/thaJeztah/status/1116392901267927041

Author: tianon

11/jdk/windows/windowsservercore-1709/Dockerfile

@@ -137,8 +137,8 @@ for javaVersion in "${versions[@]}"; do
 	for javaType in jdk jre; do
 		for v in \
 			oracle '' slim alpine \
-			windows/windowsservercore-{ltsc2016,1709,1803,1809} \
-			windows/nanoserver-{sac2016,1709,1803,1809} \
+			windows/windowsservercore-{ltsc2016,1803,1809} \
+			windows/nanoserver-{sac2016,1803,1809} \
 		; do
 			dir="$javaVersion/$javaType${v:+/$v}"
 			[ -n "$v" ] && variant="$(basename "$v")" || variant=

12/jdk/windows/windowsservercore-1709/Dockerfile

@@ -482,8 +482,8 @@ EOD
 			esac
 
 			for winVariant in \
-				nanoserver-{1809,1803,1709,sac2016} \
-				windowsservercore-{1809,1803,1709,ltsc2016} \
+				nanoserver-{1809,1803,sac2016} \
+				windowsservercore-{1809,1803,ltsc2016} \
 			; do
 				[ -f "$dir/windows/$winVariant/Dockerfile" ] || continue
 
@@ -497,7 +497,7 @@ EOD
 
 				case "$winVariant" in
 					*-1803 ) travisEnv='\n    - os: windows\n      dist: 1803-containers\n      env: VERSION='"$javaVersion VARIANT=windows/$winVariant$travisEnv" ;;
-					*-1709 | *-1809 ) ;; # no AppVeyor or Travis support for 1709 or 1809: https://github.com/appveyor/ci/issues/1885
+					*-1809 ) ;; # no AppVeyor or Travis support for 1809: https://github.com/appveyor/ci/issues/1885
 					* ) appveyorEnv='\n    - version: '"$javaVersion"'\n      variant: '"$winVariant$appveyorEnv" ;;
 				esac
 			done