WebUSB is worse than I remembered (#368)

The requirement that a device be aware of what is connected to it was
removed from the WebUSB spec.

This removes the unnecessary comparative language.

activities.json

@@ -992,7 +992,7 @@
     "id": "web-bluetooth",
     "mozBugUrl": "https://bugzilla.mozilla.org/show_bug.cgi?id=674737",
     "mozPosition": "harmful",
-    "mozPositionDetail": "This API provides access to the Generic Attribute Profile (GATT) of Bluetooth, which is not the lowest level of access that the specifications allow, but its generic nature makes it impossible to clearly evaluate. Like <a href=\"#webusb\">WebUSB</a> there is significant uncertainty regarding how well prepared devices are to receive requests from arbitrary sites. The generic nature of the API means that this risk is difficult to manage. The Web Bluetooth CG has opted for weaker protections than those in WebUSB, which require active consent to communicate from the device. This proposal uses a blocklist, which will require constant and active maintenance so that vulnerable devices aren't exploited. This model is unsustainable and presents a significant risk to users and their devices.",
+    "mozPositionDetail": "This API provides access to the Generic Attribute Profile (GATT) of Bluetooth, which is not the lowest level of access that the specifications allow, but its generic nature makes it impossible to clearly evaluate. Like <a href=\"#webusb\">WebUSB</a> there is significant uncertainty regarding how well prepared devices are to receive requests from arbitrary sites. The generic nature of the API means that this risk is difficult to manage. The Web Bluetooth CG has opted to only rely on user consent, which we believe is not sufficient protection. This proposal also uses a blocklist, which will require constant and active maintenance so that vulnerable devices aren't exploited. This model is unsustainable and presents a significant risk to users and their devices.",
     "mozPositionIssue": 95,
     "org": "Proposal",
     "title": "Web Bluetooth",