Modify onHostEndpointDisconnected to always return OK

Update the default HAL to reflect the API definition, which says that
the HAL should silently ignore incorrect values.

Bug: 233853737
Test: Compile only
Change-Id: Iae541e29706dddc6c9acb0563a2b484b75b549b5
diff --git a/contexthub/aidl/default/ContextHub.cpp b/contexthub/aidl/default/ContextHub.cpp
index 4c23cbc..35e4650 100644
--- a/contexthub/aidl/default/ContextHub.cpp
+++ b/contexthub/aidl/default/ContextHub.cpp
@@ -107,10 +107,9 @@
 ScopedAStatus ContextHub::onHostEndpointDisconnected(char16_t in_hostEndpointId) {
     if (mConnectedHostEndpoints.count(in_hostEndpointId) > 0) {
         mConnectedHostEndpoints.erase(in_hostEndpointId);
-        return ndk::ScopedAStatus::ok();
-    } else {
-        return ndk::ScopedAStatus(AStatus_fromExceptionCode(EX_ILLEGAL_ARGUMENT));
     }
+
+    return ndk::ScopedAStatus::ok();
 }
 
 }  // namespace contexthub