Remove rust docs reference to non-existent method

I grep'd the code base for `attest_tested_and_scheduled_broadcast` and
could not find any references. Git blame seems to indicate this method
was deprecated at somepoint and docs were not cleaned up.

Author: arminsabouri

payjoin/src/receive/v1/mod.rs

@@ -119,7 +119,7 @@ impl UncheckedProposal {
     /// requires manual intervention, as in most consumer wallets.
     ///
     /// So-called "non-interactive" receivers, like payment processors, that allow arbitrary requests are otherwise vulnerable to probing attacks.
-    /// Those receivers call `extract_tx_to_check_broadcast()` and `attest_tested_and_scheduled_broadcast()` after making those checks downstream.
+    /// Those receivers call `extract_tx_to_check_broadcast()` after making those checks downstream.
     pub fn assume_interactive_receiver(self) -> MaybeInputsOwned {
         MaybeInputsOwned { psbt: self.psbt, params: self.params }
     }

payjoin/src/receive/v2/mod.rs

@@ -317,7 +317,7 @@ impl UncheckedProposal {
     /// requires manual intervention, as in most consumer wallets.
     ///
     /// So-called "non-interactive" receivers, like payment processors, that allow arbitrary requests are otherwise vulnerable to probing attacks.
-    /// Those receivers call `extract_tx_to_check_broadcast()` and `attest_tested_and_scheduled_broadcast()` after making those checks downstream.
+    /// Those receivers call `extract_tx_to_check_broadcast()` after making those checks downstream.
     pub fn assume_interactive_receiver(self) -> MaybeInputsOwned {
         let inner = self.v1.assume_interactive_receiver();
         MaybeInputsOwned { v1: inner, context: self.context }