Remove rplot!

Author: asinghvi17

src/plotrecipes.jl

@@ -366,9 +366,6 @@ MakieCore.convert_arguments(::MakieCore.SurfaceLike, ::AbstractRaster{<: Real, D
 function rplot() 
     @error("Please load `Makie.jl` and then call this function.  If Makie is loaded, then you can't call `rplot` with no arguments!")
 end
-function rplot!() 
-    @error("Please load `Makie.jl` and then call this function.  If Makie is loaded, then you can't call `rplot!` with no arguments!")
-end
 
 # define the theme
 
@@ -401,4 +398,4 @@ end
 
 function theme_rasters()
     return merge(style_rasters(), color_rasters())
-end
+end