diff --git a/src/controller/python/chip/clusters/Attribute.py b/src/controller/python/chip/clusters/Attribute.py
index b553dc1234f66e..b0d27f3a35458e 100644
--- a/src/controller/python/chip/clusters/Attribute.py
+++ b/src/controller/python/chip/clusters/Attribute.py
@@ -520,22 +520,6 @@ def GetReportingIntervalsSeconds(self) -> Tuple[int, int]:
 
         return minIntervalSec.value, maxIntervalSec.value
 
-    def GetSubscriptionTimeoutMs(self) -> int:
-        '''
-        Returns the timeout(milliseconds) after which we consider the subscription to have
-        dropped, if we have received no messages within that amount of time.
-
-        Returns 0 milliseconds if a subscription has not yet been established (and
-        hence the MaxInterval is not yet known), or if the subscription session
-        is gone and hence the relevant MRP parameters can no longer be determined.
-        '''
-        timeoutMs = ctypes.c_uint32(0)
-        handle = chip.native.GetLibraryHandle()
-        builtins.chipStack.Call(
-            lambda: handle.pychip_ReadClient_GetSubscriptionTimeout(self._readTransaction._pReadClient, ctypes.pointer(timeoutMs))
-        )
-        return timeoutMs.value
-
     def SetResubscriptionAttemptedCallback(self, callback: Callable[[SubscriptionTransaction, int, int], None], isAsync=False):
         '''
         Sets the callback function that gets invoked anytime a re-subscription is attempted. The callback is expected
diff --git a/src/controller/python/chip/clusters/attribute.cpp b/src/controller/python/chip/clusters/attribute.cpp
index d55c9275a084f4..2fbca8df51cde9 100644
--- a/src/controller/python/chip/clusters/attribute.cpp
+++ b/src/controller/python/chip/clusters/attribute.cpp
@@ -471,22 +471,6 @@ PyChipError pychip_ReadClient_GetReportingIntervals(ReadClient * pReadClient, ui
     return ToPyChipError(err);
 }
 
-void pychip_ReadClient_GetSubscriptionTimeout(ReadClient * pReadClient, uint32_t * milliSec)
-{
-    VerifyOrDie(pReadClient != nullptr);
-
-    Optional<System::Clock::Timeout> duration = pReadClient->GetSubscriptionTimeout();
-
-    // The return value of GetSubscriptionTimeout cannot be 0
-    // so milliSec=0 can be considered as the subscription has been abnormal.
-    *milliSec = 0;
-    if (duration.HasValue())
-    {
-        System::Clock::Milliseconds32 msec = std::chrono::duration_cast<System::Clock::Milliseconds32>(duration.Value());
-        *milliSec                          = msec.count();
-    }
-}
-
 PyChipError pychip_ReadClient_Read(void * appContext, ReadClient ** pReadClient, ReadClientCallback ** pCallback,
                                    DeviceProxy * device, uint8_t * readParamsBuf, void ** attributePathsFromPython,
                                    size_t numAttributePaths, void ** dataversionFiltersFromPython, size_t numDataversionFilters,
@@ -576,22 +560,11 @@ PyChipError pychip_ReadClient_Read(void * appContext, ReadClient ** pReadClient,
             params.mKeepSubscriptions         = pyParams.keepSubscriptions;
             callback->SetAutoResubscribe(pyParams.autoResubscribe);
 
-#if CONFIG_BUILD_FOR_HOST_UNIT_TEST
-            if (!pyParams.autoResubscribe)
-            {
-                // We want to allow certain kinds of spec-invalid subscriptions so we
-                // can test how the server reacts to them.
-                err = readClient->SendSubscribeRequestWithoutValidation(params);
-            }
-            else
-#endif // CONFIG_BUILD_FOR_HOST_UNIT_TEST
-            {
-                dataVersionFilters.release();
-                attributePaths.release();
-                eventPaths.release();
+            dataVersionFilters.release();
+            attributePaths.release();
+            eventPaths.release();
 
-                err = readClient->SendAutoResubscribeRequest(std::move(params));
-            }
+            err = readClient->SendAutoResubscribeRequest(std::move(params));
             SuccessOrExit(err);
         }
         else