common: Remove libjnlib-config.h (jnlib merge).

* common/libjnlib-config.h: Remove.
* common/common-defs.h (getenv) [HAVE_GETENV]: New.  From removed
header.
(getpid) [HAVE_W32CE_SYSTEM]: New.  From removed header.
* common/argparse.c: Include util.h and common-defs.h.  Replace
jnlib_ macro names for non-GNUPG builds by x* names.
* common/dotlock.c: Ditto.
* common/logging.c: Include util.h and common-defs.h.  Replace jnlib_
symbol names by x* names.
* common/strlist.c: Ditto.
* common/utf8conv.c: Ditto.
* common/w32-reg.c: Ditto.
* common/mischelp.c: Ditto.  Also remove _jnlib_free.
* common/stringhelp.c: Ditto.
(JNLIB_LOG_WITH_PREFIX): Do not depend on this macro.
* common/logging.h (JNLIB_LOG_WITH_PREFIX): Do not depend on this
macro.
--

This is part 1 of the patches to merge the jnlib files into common/.
It does not make much sense to keep jnlib/ files separate.  They are
not often use elsewhere and maintaining the complex marcos stuff is
too troublesome for the future.

Signed-off-by: Werner Koch <wk@gnupg.org>

common/t-support.c

@@ -128,9 +128,7 @@ gcry_free (void *a)
 
 /* Stubs for gpg-error functions required because some compilers do
    not eliminate the supposed-to-be-unused-inline-functions and thus
-   require functions called from these inline fucntions.  Although we
-   do not use gpg-error, gpg-error.h may get included via gcrypt.h if
-   it happens to be used used in libjnlib-config.h.  */
+   require functions called from these inline functions.  */
 #ifndef GPG_ERROR_H /* Don't do this if gpg-error.h has been included.  */
 int
 gpg_err_code_from_errno (int err)