unnecessary to check libpcap

Upstream-Status: Pending

since the check of libpcap did not consider the cross-compile, lead to the
below error:
	This autoconf log indicates errors, it looked at host include and/or
	library paths while determining system capabilities.

In fact, the libpcap has been added into the tcpdump's DEPENDS, not need to
check if libpcap existed.

Signed-off-by: Roy Li <rongqing.li@windriver.com>
---
 configure.in |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.in b/configure.in
index 06fade1..9125de7 100644
--- a/configure.in
+++ b/configure.in
@@ -567,7 +567,7 @@ AC_SEARCH_LIBS(getrpcbynumber, nsl,
 dnl AC_CHECK_LIB(z, uncompress)
 dnl AC_CHECK_HEADERS(zlib.h)
 
-AC_LBL_LIBPCAP(V_PCAPDEP, V_INCLS)
+#AC_LBL_LIBPCAP(V_PCAPDEP, V_INCLS)
 
 #
 # Check for these after AC_LBL_LIBPCAP, so we link with the appropriate
-- 
1.7.9.5