Revert adding packet_capture dependency

No need for separate pcap since we can get the capture from AP.

BUG=chromium:627552
TEST=Tested against a device in the lab with pcap

Change-Id: I28dcaff6fd41257e9b803e92d01dec8563916dc3
Reviewed-on: https://chromium-review.googlesource.com/513124
Commit-Ready: Harpreet Grewal <harpreet@chromium.org>
Tested-by: Harpreet Grewal <harpreet@chromium.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
diff --git a/server/site_tests/network_WiFi_HiddenScan/control b/server/site_tests/network_WiFi_HiddenScan/control
index a99b82f..6be15f9 100644
--- a/server/site_tests/network_WiFi_HiddenScan/control
+++ b/server/site_tests/network_WiFi_HiddenScan/control
@@ -8,7 +8,7 @@
 TEST_TYPE = 'Server'
 ATTRIBUTES = ('suite:wifi_matfunc, suite:wifi_matfunc_noservo,'
               'suite:wifi_matfunc_bcm4371')
-DEPENDENCIES = 'wificell, packet_capture'
+DEPENDENCIES = 'wificell'
 
 DOC = """
 This test scans for hidden networks. The test verifies that the 802.11
diff --git a/server/site_tests/network_WiFi_VisibleScan/control b/server/site_tests/network_WiFi_VisibleScan/control
index 13363e6..72b0632 100644
--- a/server/site_tests/network_WiFi_VisibleScan/control
+++ b/server/site_tests/network_WiFi_VisibleScan/control
@@ -8,7 +8,7 @@
 TEST_TYPE = 'Server'
 ATTRIBUTES = ('suite:wifi_matfunc, suite:wifi_matfunc_noservo,'
               'suite:wifi_matfunc_bcm4371')
-DEPENDENCIES = 'wificell, packet_capture'
+DEPENDENCIES = 'wificell'
 
 DOC = """
 This test scans for networks, with a shill profile that does not