Fix some kotlin warnings

app/src/main/java/org/tasks/activities/PlaceSettingsActivity.kt

@@ -65,7 +65,7 @@ class PlaceSettingsActivity : BaseListSettingsActivity(), MapFragment.MapFragmen
                     || selectedIcon != place.icon
 
     @OnTextChanged(R.id.name)
-    fun onNameChanged(text: CharSequence?) {
+    fun onNameChanged() {
         nameLayout.error = null
     }
 

app/src/main/java/org/tasks/billing/PurchaseActivity.kt

@@ -25,7 +25,6 @@ import org.tasks.injection.ActivityComponent
 import org.tasks.injection.ThemedInjectingAppCompatActivity
 import org.tasks.locale.Locale
 import timber.log.Timber
-import java.lang.String
 import javax.inject.Inject
 
 private const val EXTRA_MONTHLY = "extra_monthly"

app/src/main/java/org/tasks/caldav/GeoUtils.kt

@@ -25,7 +25,7 @@ object GeoUtils {
 
     fun Geo.equalish(other: Geo?): Boolean {
         return latitude.truncate() == other?.latitude?.truncate()
-                && longitude.truncate() == other?.longitude?.truncate()
+                && longitude.truncate() == other.longitude?.truncate()
     }
 
     private fun String.numDecimalPlaces(): Int {

app/src/main/java/org/tasks/preferences/fragments/LookAndFeel.kt

@@ -108,7 +108,7 @@ class LookAndFeel : InjectingPreferenceFragment(), Preference.OnPreferenceChange
             true
         }
 
-        findPreference(R.string.p_desaturate_colors).setOnPreferenceChangeListener { _, newValue ->
+        findPreference(R.string.p_desaturate_colors).setOnPreferenceChangeListener { _, _ ->
             if (context?.resources?.configuration?.uiMode?.and(Configuration.UI_MODE_NIGHT_MASK) == Configuration.UI_MODE_NIGHT_YES) {
                 activity?.recreate()
             }