MessageStore: iterate over the list for removal only if it is not empty (#1358)

* MessageStore: iterate over the list for removal only if it is not empty

* Update FileSystem.cpp

---------

Co-authored-by: Pierre Wielders <[email protected]>

Author: HaseenaSainul

Source/core/MessageStore.cpp

@@ -59,13 +59,14 @@ namespace WPEFramework {
 
                 _adminLock.Lock();
 
-                ASSERT(std::find(_controlList.begin(), _controlList.end(), control) != _controlList.end());
+                if (_controlList.size() > 0) {
+                    ASSERT(std::find(_controlList.begin(), _controlList.end(), control) != _controlList.end());
 
-                auto entry = std::find(_controlList.begin(), _controlList.end(), control);
-                if (entry != _controlList.end()) {
-                    _controlList.erase(entry);
+                    auto entry = std::find(_controlList.begin(), _controlList.end(), control);
+                    if (entry != _controlList.end()) {
+                        _controlList.erase(entry);
+                    }
                 }
-
                 _adminLock.Unlock();
             }