qemu-img: remove references to GEN_DOCS

Nothing seemingly uses this.
(jcody: commit 77bd1119 even mentions that it appears unused)
Signed-off-by: NJohn Snow <jsnow@redhat.com>
Reviewed-by: NJeff Cody <jcody@redhat.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

qemu-img.c

@@ -123,7 +123,6 @@ static void QEMU_NORETURN help(void)
            "  " arg_string "\n"
 #include "qemu-img-cmds.h"
 #undef DEF
-#undef GEN_DOCS
            "\n"
            "Command parameters:\n"
            "  'filename' is a disk image filename\n"
@@ -4716,7 +4715,6 @@ static const img_cmd_t img_cmds[] = {
     { option, callback },
 #include "qemu-img-cmds.h"
 #undef DEF
-#undef GEN_DOCS
     { NULL, NULL, },
 };
 

qemu-options-wrapper.h

@@ -34,7 +34,6 @@
 #undef DEF
 #undef DEFHEADING
 #undef ARCHHEADING
-#undef GEN_DOCS
 
 #undef QEMU_OPTIONS_GENERATE_ENUM
 #undef QEMU_OPTIONS_GENERATE_HELP