Refactor deprecated predicates to use new classes

Modified the predicates in `SensitiveApi` to rely on the new classes
which are using models as data. This allows us to remove the old
predicates containing the pre-MaD versions of the models.

Author: egregius313

java/ql/lib/change-notes/2023-08-23-deprecated-sensitiveapi-predicates.md renamed to java/ql/lib/change-notes/2023-09-29-deprecated-sensitiveapi-predicates.md

@@ -1,4 +1,4 @@
 ---
 category: deprecated
 ---
-* In `SensitiveApi.qll`, `javaApiCallablePasswordParam`, `javaApiCallableUsernameParam`, `javaApiCallableCryptoKeyParam`, and `otherApiCallableCredentialParam` predicates have been deprecated. They have been replaced with a new class `CredentialsSinkNode` and its child classes `PasswordSink`, `UsernameSink`, and `CryptoKeySink`. 
+* In `SensitiveApi.qll`, `javaApiCallablePasswordParam`, `javaApiCallableUsernameParam`, `javaApiCallableCryptoKeyParam`, and `otherApiCallableCredentialParam` predicates have been deprecated. They have been replaced with a new class `CredentialsSinkNode` and its child classes `PasswordSink`, `UsernameSink`, and `CryptoKeySink`. The predicates have been changed to using the new classes, so there may be minor changes in results relying on these predicates.