Merge #17285: doc: Bip70 removal follow-up

3ed8e3d079a3860dcdf944f7c1aa37765a53da32 doc: Remove explicit network name references (Fabian Jahr)
d6e493f0c2850b522a676a005935163beddaa2cc wallet: Remove left-over BIP70 comment (Fabian Jahr)

Pull request description:

  A small follow-up to #17165 which removed BIP70 support.

  1. Removes one leftover mention of BIP70 in a comment.
  2. Removes BIP70 reference in comments on network/chain name strings. These can be removed as they are not really helpful and also incorrect: BIP70 only defines "main" and "test" but not "regtest". If/When signet gets merged we will add another name to the list that is not defined in BIP70. Mostly there is also an exhaustive list of the options included in the comment anyway.

  If we would like to keep an identifier for this naming scheme, I would suggest switching to something more generic, like 'short chain name'. Happy to implement that if that is preferred. Alternatively, we could add a reference to `CBaseChainParams`. That would also mean we don't have to change these lines again for signet.

ACKs for top commit:
  MarcoFalke:
    ACK 3ed8e3d079a3860dcdf944f7c1aa37765a53da32

Tree-SHA512: 9a7c0b9cacbb67bd31a089ffdc6f1ebc7f336493e2c8266eb697da34dce2b505a431d5639a3e4fc34f9287361343e861b55dc2662e0a1d2095cc1046db77d6ee

2 files changed, 3 insertions, 3 deletions

diff --git a/src/qt/networkstyle.h b/src/qt/networkstyle.h
index bb12dd1b6e..1367261325 100644
--- a/src/qt/networkstyle.h
+++ b/src/qt/networkstyle.h
@@ -13,7 +13,7 @@
 class NetworkStyle
 {
 public:
-    /** Get style associated with provided BIP70 network id, or 0 if not known */
+    /** Get style associated with provided network id, or 0 if not known */
     static const NetworkStyle* instantiate(const std::string& networkId);
 
     const QString &getAppName() const { return appName; }
diff --git a/src/qt/walletmodel.h b/src/qt/walletmodel.h
index d21dec118a..a873519a34 100644
--- a/src/qt/walletmodel.h
+++ b/src/qt/walletmodel.h
@@ -64,8 +64,8 @@ public:
     CAmount amount;
     // If from a payment request, this is used for storing the memo
     QString message;
-    // If building with BIP70 is disabled, keep the payment request around as
-    // serialized string to ensure load/store is lossless
+    // Keep the payment request around as a serialized string to ensure
+    // load/store is lossless.
     std::string sPaymentRequest;
     // Empty if no authentication or invalid signature/cert/etc.
     QString authenticatedMerchant;