Yes, download Sweet Home 3D installer for your system. Install it. Then move, rename or delete the files names Furniture.jar and Textures.jar found in Sweet Home 3D installation subdirectories.
Under Windows and Linux, you'll find Furniture.jar and Textures.jar files in the lib subdirectory of Sweet Home 3D installation directory, and under Mac OS X you'll find them in the subfolder named Contents/Resources/Java in Sweet Home 3D.app package (choose Display package content in the contextual menu of Sweet Home 3D icon to see this hidden subdirectories).