Revert "Implementing a proximity_auth::Connection interface for Bluet…

…ooth Low Energy devices."

Original issue's description:
> Implementing a proximity_auth::Connection interface for Bluetooth Low Energy
> devices.
>
> The current version does not handle messages larger than a single characteristic
> size (around 150 bytes). Message receiving functionality is not implemented yet.
>
> BUG=485123
> Committed: https://crrev.com/574c1637312ef98f8fa4bde909c1f040ddf33a4b
> Cr-Commit-Position: refs/heads/master@{#329837}

BUG=490635
[email protected], [email protected]

Review URL: https://codereview.chromium.org/1150033003

Cr-Commit-Position: refs/branch-heads/2403@{#53}
Cr-Branched-From: f54b809-refs/heads/master@{#330231}

components/proximity_auth.gypi

@@ -19,12 +19,8 @@
         '../net/net.gyp:net',
       ],
       'sources': [
-        "proximity_auth/ble/bluetooth_low_energy_connection.cc",
-        "proximity_auth/ble/bluetooth_low_energy_connection.h",
         "proximity_auth/ble/bluetooth_low_energy_connection_finder.cc",
         "proximity_auth/ble/bluetooth_low_energy_connection_finder.h",
-        "proximity_auth/ble/fake_wire_message.cc",
-        "proximity_auth/ble/fake_wire_message.h",
         "proximity_auth/ble/proximity_auth_ble_system.cc",
         "proximity_auth/ble/proximity_auth_ble_system.h",
         "proximity_auth/bluetooth_connection.cc",

components/proximity_auth/ble/BUILD.gn

@@ -4,12 +4,8 @@
 
 source_set("ble") {
   sources = [
-    "bluetooth_low_energy_connection.cc",
-    "bluetooth_low_energy_connection.h",
     "bluetooth_low_energy_connection_finder.cc",
     "bluetooth_low_energy_connection_finder.h",
-    "fake_wire_message.cc",
-    "fake_wire_message.h",
     "proximity_auth_ble_system.cc",
     "proximity_auth_ble_system.h",
   ]