Remove deprecations

Author: slinkydeveloper

sdk-api-kotlin/src/main/kotlin/dev/restate/sdk/kotlin/KtSerdes.kt

@@ -670,14 +670,6 @@ sealed interface DurablePromise<T> {
   /** @return the future to await the promise result on. */
   suspend fun future(): DurableFuture<T>
 
-  @Deprecated(
-      message = "Use future() instead",
-      level = DeprecationLevel.WARNING,
-      replaceWith = ReplaceWith(expression = "future()"))
-  suspend fun awaitable(): DurableFuture<T> {
-    return future()
-  }
-
   /** @return the value, if already present, otherwise returns an empty optional. */
   suspend fun peek(): Output<T>
 }

sdk-api-kotlin/src/main/kotlin/dev/restate/sdk/kotlin/api.kt

@@ -36,14 +36,6 @@ public interface DurablePromise<T> {
    */
   DurableFuture<T> future();
 
-  /**
-   * @deprecated Use {@link #future()} instead.
-   */
-  @Deprecated(forRemoval = true, since = "2.0")
-  default DurableFuture<T> awaitable() {
-    return future();
-  }
-
   /**
    * @return the value, if already present, otherwise returns an empty optional.
    */