Clean-up duplicate section in bLIP-0002 (#49)

It looks like two PRs added the `update_add_htlc` section.
This wasn't correctly merged.

Author: t-bast

blip-0002.md

@@ -109,9 +109,10 @@ The following table contains extension tlv fields for the `payment_onion_payload
 
 The following table contains extension tlv fields for the `update_add_htlc` message:
 
-| Type  | Name                        | Link                           |
-|-------|-----------------------------|--------------------------------|
-| 65537 | `extra_fee`                 | [bLIP 25](./blip-0025.md)      |
+| Type   | Name                        | Link                           |
+|--------|-----------------------------|--------------------------------|
+| 106823 | `endorsed`                  | [bLIP 4](./blip-0004.md)       |
+| 65537  | `extra_fee`                 | [bLIP 25](./blip-0025.md)      |
 
 #### `ping`
 
@@ -130,14 +131,6 @@ The following table contains tlv fields for use in onion messages as the payload
 | 65536 | `dnssec_query`              | [bLIP 32](./blip-0032.md)      |
 | 65538 | `dnssec_proof`              | [bLIP 32](./blip-0032.md)      |
 
-#### `update_add_htlc`
-
-The following table contains extension tlv fields for the `update_add_htlc` message:
-
-| Type   | Name                        | Link                           |
-|--------|-----------------------------|--------------------------------|
-| 106823 | `endorsed`                  | [bLIP 4](./blip-0004.md)       |
-
 ## Copyright
 
 This bLIP is licensed under the CC0 license.