Don't build WPILib filters

They want to #include .inc files, and we're not using them.

Change-Id: Iae92ff7ef08c664f4d6f8b79285b1bb5c413fdd1
diff --git a/third_party/allwpilib_2016/BUILD b/third_party/allwpilib_2016/BUILD
index 330b330..bdaa0f9 100644
--- a/third_party/allwpilib_2016/BUILD
+++ b/third_party/allwpilib_2016/BUILD
@@ -24,6 +24,8 @@
    'hal/lib/Shared/*.cpp',
 
    'networktables/ntcore/src/**/*.cpp',
+ ], [
+   'wpilibc/shared/*/Filters/**/*',
  ]),
  copts = [
    '-Wno-unused-parameter',