dlopen.3: EXAMPLE: Remove mention of "-rdynamic"

That option isn't needed for compiling and running this program.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

man3/dlopen.3

@@ -520,26 +520,6 @@ main(int argc, char **argv)
     exit(EXIT_SUCCESS);
 }
 .fi
-.PP
-If this program were in a file named "foo.c", you would build the program
-with the following command:
-.in +4n
-.LP
-    gcc \-rdynamic \-o foo foo.c \-ldl
-.in
-.PP
-Shared objects exporting (the obsolete)
-.BR _init ()
-and
-.BR _fini ()
-will want to be compiled as
-follows, using
-.I bar.c
-as the example name:
-.in +4n
-.LP
-    gcc \-shared \-nostartfiles \-o bar bar.c
-.in
 .SH SEE ALSO
 .BR ld (1),
 .BR ldd (1),