Remove EOL JRuby 9.2

JRuby 9.2 has not been supported for some time, but we continued
to push the docker images. With Bundler no longer supported on
Ruby 2.5 and earlier, now is a good time to drop the images.

library/jruby

@@ -45,27 +45,3 @@ Tags: 9.3-jdk17, 9.3.9-jdk17, 9.3.9.0-jdk17
 Architectures: amd64, arm64v8
 Directory: 9.3/jdk17
 
-Tags: 9.2, 9.2.21, 9.2-jre, 9.2-jre8, 9.2.21-jre, 9.2.21-jre8, 9.2.21.0, 9.2.21.0-jre, 9.2.21.0-jre8
-Architectures: amd64
-Directory: 9.2/jre8
-
-Tags: 9.2-jdk, 9.2-jdk8, 9.2.21-jdk, 9.2.21-jdk8, 9.2.21.0-jdk, 9.2.21.0-jdk8
-Architectures: amd64
-Directory: 9.2/jdk8
-
-Tags: 9.2-jre11, 9.2.21-jre11, 9.2.21.0-jre11
-Architectures: amd64
-Directory: 9.2/jre11
-
-Tags: 9.2-jdk11, 9.2.21-jdk11, 9.2.21.0-jdk11
-Architectures: amd64
-Directory: 9.2/jdk11
-
-Tags: 9.2-jdk17, 9.2.21-jdk17, 9.2.21.0-jdk17
-Architectures: amd64
-Directory: 9.2/jdk17
-
-Tags: 9.2-onbuild, 9.2.21-onbuild, 9.2.21.0-onbuild
-Architectures: amd64
-Directory: 9.2/onbuild-jdk8
-