Remove old Xcode settings folder

Builds/Test.xcworkspace/contents.xcworkspacedata

-<?xml version="1.0" encoding="UTF-8"?>
-<Workspace
-   version = "1.0">
-   <FileRef
-      location = "container:MacOSX/open-ephys.xcodeproj">
-   </FileRef>
-</Workspace>

Builds/Test.xcworkspace/xcuserdata/Josh.xcuserdatad/WorkspaceSettings.xcsettings

-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>IDEWorkspaceUserSettings_HasAskedToTakeAutomaticSnapshotBeforeSignificantChanges</key>
-	<true/>
-	<key>IDEWorkspaceUserSettings_SnapshotAutomaticallyBeforeSignificantChanges</key>
-	<true/>
-</dict>
-</plist>