remove some long-deprecated functions

src/MeshCat.jl

@@ -42,7 +42,6 @@ export AbstractVisualizer,
 
 export Object,
        HyperEllipsoid,
-       HyperCylinder,
        PointCloud,
        Cone,
        Triad,

src/atframe.jl

@@ -58,20 +58,3 @@ function atframe(f, animation::Animation, frame::Integer)
     Cassette.overdub(AnimationCtx(metadata=(animation, frame)), f)
     return animation
 end
-
-function atframe(f::Function, anim::Animation, path::Path, frame::Integer)
-    error("""
-    atframe(f::Function, anim::Animation, path::Path, frame::Integer) is no longer supported.
-    Please see the updated animation example notebook.
-    """)
-end
-
-function atframe(f::Function, anim::Animation, vis::Visualizer, frame::Integer)
-    Base.depwarn("""
-    atframe(f::Function, anim::Animation, vis::Visualizer, frame::Integer) is deprecated.
-    Please use atframe(g, anim, frame) instead, where g is similar to f but takes
-    no arguments and should call methods on vis.
-    See also the updated animation example notebook.
-    """, :atframe)
-    atframe(() -> f(vis), anim, frame)
-end

src/geometry.jl

@@ -7,8 +7,6 @@ end
 GeometryTypes.origin(geometry::HyperEllipsoid{N, T}) where {N, T} = geometry.center
 radii(geometry::HyperEllipsoid{N, T}) where {N, T} = geometry.radii
 
-@deprecate HyperCylinder(length::T, radius) where {T} Cylinder{3, T}(Point(0., 0., 0.), Point(0, 0, length), radius)
-
 struct PointCloud{T, Point <: StaticVector{3, T}, C <: Colorant} <: AbstractGeometry{3, T}
     position::Vector{Point}
     color::Vector{C}

test/visualizer.jl

@@ -230,24 +230,7 @@ end
         settransform!(arrow_vis_2, Point(0, 1, 0), Point(1, 1, 1))
     end
 
-    @testset "Animation (old style)" begin
-        anim = Animation()
-        atframe(anim, vis[:shapes], 0) do frame_vis
-            settransform!(frame_vis[:box], Translation(0., 0, 0))
-        end
-        atframe(anim, vis[:shapes], 30) do frame_vis
-            settransform!(frame_vis[:box], Translation(2., 0, 0) ∘ LinearMap(RotZ(π/2)))
-        end
-        atframe(anim, vis, 0) do framevis
-            setprop!(framevis["/Cameras/default/rotated/<object>"], "zoom", 1)
-        end
-        atframe(anim, vis, 30) do framevis
-            setprop!(framevis["/Cameras/default/rotated/<object>"], "zoom", 0.5)
-        end
-        setanimation!(vis, anim)
-    end
-
-    @testset "Animation (new style)" begin
+    @testset "Animation" begin
         anim1 = Animation()
         atframe(anim1, 0) do
             settransform!(vis[:shapes][:box], Translation(0., 0, 0))