Deprecate Config::getSettings

Also, remove support for getting all settings for a scope selector

Signed-off-by: Nathan Sobo <nathan@github.com>

spec/config-spec.coffee

@@ -252,23 +252,12 @@ describe "Config", ->
       atom.config.setDefaults("foo", bar: baz: 10)
       atom.config.set("foo.ok", 12)
 
+      jasmine.snapshotDeprecations()
       expect(atom.config.getSettings().foo).toEqual
         ok: 12
         bar:
           baz: 10
-
-    describe "when scoped settings are used", ->
-      it "returns all the scoped settings including all the defaults", ->
-        atom.config.setDefaults("foo", bar: baz: 10)
-        atom.config.set("foo.ok", 12)
-        atom.config.addScopedSettings("default", ".source.coffee", foo: bar: baz: 42)
-        atom.config.addScopedSettings("default", ".source.coffee", foo: bar: omg: 'omg')
-
-        expect(atom.config.getSettings(".source.coffee").foo).toEqual
-          ok: 12
-          bar:
-            baz: 42
-            omg: 'omg'
+      jasmine.restoreDeprecationsSnapshot()
 
   describe ".pushAtKeyPath(keyPath, value)", ->
     it "pushes the given value to the array at the key path and updates observers", ->

src/config.coffee

@@ -604,18 +604,11 @@ class Config
       schema = schema.properties[key]
     schema
 
-  # Extended: Returns a new {Object} containing all of the global settings and
+  # Deprecated: Returns a new {Object} containing all of the global settings and
   # defaults. Returns the scoped settings when a `scopeSelector` is specified.
-  #
-  # * `scopeSelector` (optional) {String}. eg. '.source.ruby'
-  getSettings: (scopeSelector) ->
-    settings = _.deepExtend(@settings, @defaultSettings)
-
-    if scopeSelector?
-      scopedSettings = @scopedSettingsStore.propertiesForSelector(scopeSelector)
-      settings = _.deepExtend(scopedSettings, settings)
-
-    settings
+  getSettings: ->
+    deprecate "Use ::get(keyPath) instead"
+    _.deepExtend(@settings, @defaultSettings)
 
   # Extended: Get the {String} path to the config file being used.
   getUserConfigPath: ->