diff --git a/redfish-core/include/event_service_manager.hpp b/redfish-core/include/event_service_manager.hpp
index ba2450d..6ad8de3 100644
--- a/redfish-core/include/event_service_manager.hpp
+++ b/redfish-core/include/event_service_manager.hpp
@@ -258,95 +258,6 @@
 
 } // namespace event_log
 
-inline bool isFilterQuerySpecialChar(char c)
-{
-    switch (c)
-    {
-        case '(':
-        case ')':
-        case '\'':
-            return true;
-        default:
-            return false;
-    }
-}
-
-inline bool
-    readSSEQueryParams(std::string sseFilter, std::string& formatType,
-                       std::vector<std::string>& messageIds,
-                       std::vector<std::string>& registryPrefixes,
-                       std::vector<std::string>& metricReportDefinitions)
-{
-    auto remove = std::ranges::remove_if(sseFilter, isFilterQuerySpecialChar);
-    sseFilter.erase(std::ranges::begin(remove), sseFilter.end());
-
-    std::vector<std::string> result;
-
-    // NOLINTNEXTLINE
-    bmcweb::split(result, sseFilter, ' ');
-
-    BMCWEB_LOG_DEBUG("No of tokens in SEE query: {}", result.size());
-
-    constexpr uint8_t divisor = 4;
-    constexpr uint8_t minTokenSize = 3;
-    if (result.size() % divisor != minTokenSize)
-    {
-        BMCWEB_LOG_ERROR("Invalid SSE filter specified.");
-        return false;
-    }
-
-    for (std::size_t i = 0; i < result.size(); i += divisor)
-    {
-        const std::string& key = result[i];
-        const std::string& op = result[i + 1];
-        const std::string& value = result[i + 2];
-
-        if ((i + minTokenSize) < result.size())
-        {
-            const std::string& separator = result[i + minTokenSize];
-            // SSE supports only "or" and "and" in query params.
-            if ((separator != "or") && (separator != "and"))
-            {
-                BMCWEB_LOG_ERROR(
-                    "Invalid group operator in SSE query parameters");
-                return false;
-            }
-        }
-
-        // SSE supports only "eq" as per spec.
-        if (op != "eq")
-        {
-            BMCWEB_LOG_ERROR(
-                "Invalid assignment operator in SSE query parameters");
-            return false;
-        }
-
-        BMCWEB_LOG_DEBUG("{} : {}", key, value);
-        if (key == "EventFormatType")
-        {
-            formatType = value;
-        }
-        else if (key == "MessageId")
-        {
-            messageIds.push_back(value);
-        }
-        else if (key == "RegistryPrefix")
-        {
-            registryPrefixes.push_back(value);
-        }
-        else if (key == "MetricReportDefinition")
-        {
-            metricReportDefinitions.push_back(value);
-        }
-        else
-        {
-            BMCWEB_LOG_ERROR("Invalid property({})in SSE filter query.", key);
-            return false;
-        }
-    }
-    return true;
-}
-
 class Subscription : public persistent_data::UserSubscription
 {
   public: