RFR [XS]: 8238602: remove obsolete functions from libinstrument/FileSystemSupport_md.c

[Baesken, Matthias]

Hello,

  the link time section gc (see https://bugs.openjdk.java.net/browse/JDK-8236714 , on linux s390x it prints the removed sections) showed some obsolete / unused functions in FileSystemSupport_md.c :

ld: Removing unused section '.text.pathSeparator' in file '/nightly/output-jdk-dev/support/native/java.instrument/libinstrument/FileSystemSupport_md.o'
ld: Removing unused section '.text.filenameStrcmp' in file '/nightly/output-jdk-dev/support/native/java.instrument/libinstrument/FileSystemSupport_md.o'



They can be cleaned up.


Bug/webrev :

https://bugs.openjdk.java.net/browse/JDK-8238602

http://cr.openjdk.java.net/~mbaesken/webrevs/8238602.0/

Thanks, Matthias
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