Raise macOS deployment target to 10.15

Author: shirakaba

ios/RNCSafeAreaContext.mm

@@ -49,12 +49,7 @@ - (NSDictionary *)getConstants
 #if TARGET_OS_IPHONE
     UIEdgeInsets safeAreaInsets = window.safeAreaInsets;
 #elif TARGET_OS_OSX
-    NSEdgeInsets safeAreaInsets;
-    if (@available(macOS 10.10, *)) {
-      safeAreaInsets = NSEdgeInsetsZero;
-    } else {
-      safeAreaInsets = NSEdgeInsetsMake(0, 0, 0, 0);
-    }
+    NSEdgeInsets safeAreaInsets = NSEdgeInsetsZero;
 #endif
 
     constants = @{

ios/RNCSafeAreaProvider.m

@@ -54,10 +54,8 @@ - (void)invalidateSafeAreaInsets
   NSEdgeInsets safeAreaInsets;
   if (@available(macOS 11.0, *)) {
     safeAreaInsets = self.safeAreaInsets;
-  } else if (@available(macOS 10.10, *)) {
-    safeAreaInsets = NSEdgeInsetsZero;
   } else {
-    safeAreaInsets = NSEdgeInsetsMake(0, 0, 0, 0);
+    safeAreaInsets = NSEdgeInsetsZero;
   }
 #endif
   CGRect frame = [self convertRect:self.bounds toView:RNCParentViewController(self).view];