tools/bpftool: Fix skeleton codegen

Remove unnecessary check at the end of codegen() routine which makes codegen()
to always fail and exit bpftool with error code. Positive value of variable
n is not an indicator of a failure.

Fixes: 2c4779e ("tools, bpftool: Exit on error in function codegen")
Signed-off-by: Andrii Nakryiko <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Reviewed-by: Tobias Klauser <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]

Author: anakryiko

tools/bpf/bpftool/gen.c

@@ -257,8 +257,6 @@ static void codegen(const char *template, ...)
 	va_end(args);
 
 	free(s);
-	if (n)
-		exit(-1);
 }
 
 static int do_skeleton(int argc, char **argv)