This reverts commit 2386a92c and its follow-ups
1acaa577 "sal: add special handling of argc==0
to osl_setCommandArgs()" and 01f27b5e "sal: fix
osl_setCommandArgs() on WNT."

The situation that osl_getCommandArgCount is called without a prior call to
osl_setCommandArgs should be considered as harmless and can legitimately not
only happen in the pyuno case discussed in the reverted commits, but also in
case binary UNO is bootstrapped from within a Java process, as happens in
test-javanative in ure/source/uretest/Makefile.

Change-Id: I2829db390e37dfe5daeda33a4c0659b7d35e565a