chore: consolidate xcode_settings

Author: codebytere

binding.gyp

@@ -4,9 +4,6 @@
     "sources": [ ],
     "conditions": [
       ['OS=="mac"', {
-        "xcode_settings": {
-          "MACOSX_DEPLOYMENT_TARGET": "10.10"
-        },
         "sources": [
           "permissions.mm"
         ],
@@ -21,6 +18,7 @@
     ],
     'defines': [ 'NAPI_DISABLE_CPP_EXCEPTIONS' ],
     "xcode_settings": {
+      "MACOSX_DEPLOYMENT_TARGET": "10.10",
       "OTHER_CPLUSPLUSFLAGS": ["-std=c++14", "-stdlib=libc++"],
       "OTHER_LDFLAGS": ["-framework CoreFoundation -framework CoreLocation -framework AppKit -framework Speech -framework Contacts -framework Photos -framework EventKit -framework AVFoundation"]
     }