Remove last references to tcpdump.

It hasn't been in the Haiku repository or provided by the Haiku package
for over a year.

src/apps/aboutsystem/AboutSystem.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright 2005-2014, Haiku, Inc.
+ * Copyright 2005-2018, Haiku, Inc.
  * Distributed under the terms of the MIT license.
  *
  * Authors:
@@ -1292,12 +1292,6 @@ AboutView::_CreateCreditsView()
 		.SetLicense(kBSDThreeClause)
 		.SetURL("http://www.xiph.org"));
 
-	// The Tcpdump Group
-	_AddPackageCredit(PackageCredit("The Tcpdump Group")
-		.SetCopyright("tcpdump, libpcap")
-		.SetLicense(kBSDThreeClause)
-		.SetURL("http://www.tcpdump.org"));
-
 	// Matroska
 	_AddPackageCredit(PackageCredit("libmatroska")
 		.SetCopyright(B_TRANSLATE(COPYRIGHT_STRING "2002-2003 Steve Lhomme. "

src/data/package_infos/arm/haiku

@@ -37,7 +37,6 @@ provides {
 	cmd:renice
 	cmd:resattr
 	cmd:su
-	cmd:tcpdump
 	cmd:telnet
 	cmd:telnetd
 	cmd:top

src/data/package_infos/m68k/haiku

@@ -37,7 +37,6 @@ provides {
 	cmd:renice
 	cmd:resattr
 	cmd:su
-	cmd:tcpdump
 	cmd:telnet
 	cmd:telnetd
 	cmd:top

src/data/package_infos/ppc/haiku

@@ -37,7 +37,6 @@ provides {
 	cmd:renice
 	cmd:resattr
 	cmd:su
-	cmd:tcpdump
 	cmd:telnet
 	cmd:telnetd
 	cmd:top

src/data/package_infos/x86/haiku

@@ -37,7 +37,6 @@ provides {
 	cmd:renice
 	cmd:resattr
 	cmd:su
-	cmd:tcpdump
 	cmd:telnet
 	cmd:telnetd
 	cmd:top

src/data/package_infos/x86_64/haiku

@@ -36,7 +36,6 @@ provides {
 	cmd:renice
 	cmd:resattr
 	cmd:su
-	cmd:tcpdump
 	cmd:telnet
 	cmd:telnetd
 	cmd:top

src/data/package_infos/x86_gcc2/haiku

@@ -37,7 +37,6 @@ provides {
 	cmd:renice
 	cmd:resattr
 	cmd:su
-	cmd:tcpdump
 	cmd:telnet
 	cmd:telnetd
 	cmd:top