varinfo() is moved to InteractiveUtils (#30130)

When we want to call `varinfo()` on the remote processes,
we have to call InteractiveUtils.varinfo() instead.
#25751

(cherry picked from commit bc34b99)

doc/src/manual/parallel-computing.md

@@ -869,7 +869,7 @@ julia> let B = B
            remotecall_fetch(()->B, 2)
        end;
 
-julia> @fetchfrom 2 varinfo()
+julia> @fetchfrom 2 InteractiveUtils.varinfo()
 name           size summary
 ––––––––– ––––––––– ––––––––––––––––––––––
 A         800 bytes 10×10 Array{Float64,2}