Revert 244210 "Include external touchscreen vid/pid in UMA hardw..."

trunk/src/chrome/common/metrics/proto/system_profile.proto

Index: trunk/src/chrome/common/metrics/proto/system_profile.proto
===================================================================
--- trunk/src/chrome/common/metrics/proto/system_profile.proto	(revision 244377)
+++ trunk/src/chrome/common/metrics/proto/system_profile.proto	(working copy)
@@ -83,7 +83,7 @@
   }
   optional OS os = 5;
 
-  // Next tag for Hardware: 16
+  // Next tag for Hardware: 14
   // Information on the user's hardware.
   message Hardware {
     // The CPU architecture (x86, PowerPC, x86_64, ...)
@@ -219,19 +219,6 @@
       repeated PairedDevice paired_device = 3;
     }
     optional Bluetooth bluetooth = 11;
-
-    // Whether the internal display produces touch events.
-    optional bool internal_display_supports_touch = 14;
-
-    // Vendor ids and product ids of external touchscreens.
-    message TouchScreen {
-      // Touch screen vendor id.
-      optional uint32 vendor_id = 1;
-      // Touch screen product id.
-      optional uint32 product_id = 2;
-    }
-    // Lists vendor and product ids of external touchscreens.
-    repeated TouchScreen external_touchscreen = 15;
   }
   optional Hardware hardware = 6;