enable UAM SMBs with Libre 2

See https://github.com/nightscout/AndroidAPS/issues/3181.

plugins/constraints/src/main/kotlin/app/aaps/plugins/constraints/safety/SafetyPlugin.kt

@@ -91,8 +91,6 @@ class SafetyPlugin @Inject constructor(
     }
 
     override fun isAdvancedFilteringEnabled(value: Constraint<Boolean>): Constraint<Boolean> {
-        val bgSource = activePlugin.activeBgSource
-        if (!bgSource.advancedFilteringSupported()) value.set(false, rh.gs(R.string.smbalwaysdisabled), this)
         return value
     }