4.x: Remove unused code from ClasspathSourceHelper #6975

Job	Run time
copyright	3m 26s
shellcheck	3m 12s
checkstyle	3m 58s
build	5m 55s
javadoc (core)	6m 47s
tests/tck-cdi	17m 34s
spotbugs/core	10m 34s
javadoc (integrations)	5m 19s
tests/core	11m 12s
tests/tck-rest	14m 39s
spotbugs/integrations	7m 11s
javadoc (others)	7m 48s
tests/it	14m 46s
tests/tck-others	16m 57s
spotbugs/others	13m 6s
tests/dbclient	9m 15s
tests/dbclient-oracle	16m 3s
tests/native-image-mp-1-linux	6m 41s
docs	4m 45s
archetypes/r1-jar	6m 40s
tests/others	12m 31s
tests/native-image-mp-2-linux	11m 27s
archetypes/r2-jar	7m 1s
tests/native-image-mp-3-linux	6m 26s
examples/linux	13m 47s
archetypes/legacy	4m 53s
tests/native-image-se-1-linux	6m 43s
archetypes/r3-jar	6m 2s
examples/macos	9m 51s
tests/native-image-inject-linux	6m 29s
archetypes/r4-jar	6m 49s
tests/native-image-mp-1-macos	8m 32s
tests/packaging-jar-linux	7m 5s
archetypes/r5-jar	5m 14s
tests/native-image-mp-2-macos	16m 28s
quickstarts/linux	11m 39s
tests/packaging-jlink-linux	9m 6s
tests/native-image-mp-3-macos	7m 35s
quickstarts/macos	13m 56s
tests/packaging-jar-macos	4m 58s
tests/native-image-se-1-macos	6m 39s
tests/packaging-jlink-macos	7m 11s
tests/native-image-inject-macos	6m 21s
tests/results	11s
gate	1s
	6h 22m 43s

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