Do not remove so exessively

[kenhys]

In the previous version, it will remove required runtime so with find && rm.

This is apparently bug with it.

See fluent/fluent-plugin-s3#449

[kenhys]

Now build image contains lib/jso/ext/*.so

podman exec -it 5c1752a119cd /bin/bash
fluent@5c1752a119cd:/$ find /usr/local/bundle/gems/ -name 'json'
/usr/local/bundle/gems/json-2.7.4/lib/json
fluent@5c1752a119cd:/$ find /usr/local/bundle/gems/json-2.7.4/
/usr/local/bundle/gems/json-2.7.4/
/usr/local/bundle/gems/json-2.7.4/COPYING
/usr/local/bundle/gems/json-2.7.4/README.md
/usr/local/bundle/gems/json-2.7.4/lib
/usr/local/bundle/gems/json-2.7.4/lib/json
/usr/local/bundle/gems/json-2.7.4/lib/json/version.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/ext.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/add
/usr/local/bundle/gems/json-2.7.4/lib/json/add/ostruct.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/add/date.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/add/bigdecimal.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/add/rational.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/add/complex.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/add/regexp.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/add/symbol.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/add/time.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/add/core.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/add/range.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/add/struct.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/add/exception.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/add/date_time.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/add/set.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/ext
/usr/local/bundle/gems/json-2.7.4/lib/json/ext/generator.so
/usr/local/bundle/gems/json-2.7.4/lib/json/ext/parser.so
/usr/local/bundle/gems/json-2.7.4/lib/json/ext/generator
/usr/local/bundle/gems/json-2.7.4/lib/json/ext/generator/state.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/pure
/usr/local/bundle/gems/json-2.7.4/lib/json/pure/generator.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/pure/parser.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/common.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/generic_object.rb
/usr/local/bundle/gems/json-2.7.4/lib/json/pure.rb
/usr/local/bundle/gems/json-2.7.4/lib/json.rb
/usr/local/bundle/gems/json-2.7.4/json.gemspec
/usr/local/bundle/gems/json-2.7.4/LEGAL
/usr/local/bundle/gems/json-2.7.4/BSDL
/usr/local/bundle/gems/json-2.7.4/CHANGES.md

[Watson1978]

👍🏻