linux libsaproc/DwarfParser.cpp delete DwarfParser object in early return

there is an early return in Java_sun_jvm_hotspot_debugger_linux_amd64_DwarfParser_createDwarfContext that misses to delete the non-parsable parser object.
see also the Sonar finding :
https://sonarcloud.io/project/issues?id=shipilev_jdk&languages=cpp&open=AXck8Ca-BBG2CXpcnimn&resolved=false&severities=BLOCKER&types=BUG