Remove bridge-utils/brctl usage

This package isn't available on some distributions hasn't been
required in Neutron for several years
If679e79fa3242ee1cd8610b5525deca35b41c87e.  Remove it.

Change-Id: I7308a885c1d084efe2f0b9f542443d35966140ed
(cherry picked from commit 1147300b9c)

files/debs/general

@@ -1,7 +1,6 @@
 apache2
 apache2-dev
 bc
-bridge-utils
 bsdmainutils
 curl
 default-jre-headless  # NOPRIME

files/rpms-suse/general

@@ -1,7 +1,6 @@
 apache2
 apache2-devel
 bc
-bridge-utils
 ca-certificates-mozilla
 curl
 gcc

files/rpms/general

@@ -1,5 +1,4 @@
 bc
-bridge-utils
 curl
 dbus
 gcc

lib/neutron_plugins/linuxbridge_agent

@@ -38,7 +38,7 @@ function neutron_plugin_create_nova_conf {
 }
 
 function neutron_plugin_install_agent_packages {
-    install_package bridge-utils
+    :
 }
 
 function neutron_plugin_configure_dhcp_agent {

tools/worlddump.py

@@ -166,8 +166,6 @@ def network_dump():
     _header("Network Dump")
 
     _dump_cmd("bridge link")
-    if _find_cmd("brctl"):
-        _dump_cmd("brctl show")
     _dump_cmd("ip link show type bridge")
     ip_cmds = ["neigh", "addr", "link", "route"]
     for cmd in ip_cmds + ['netns']: