Remove definition of take!(::Base.AbstractIOBuffer)

Was added in #290.

README.md

@@ -278,8 +278,6 @@ Currently, the `@compat` macro supports the following syntaxes:
 
 * `reprmime(mime, x)` is now `repr(mime, x)` ([#25990]) and `mimewritable` is now `showable` ([#26089]).
 
-* `takebuf_array` is now a method of `take!`. `takebuf_string(io)` becomes `String(take!(io))` ([#19088])
-
 * `is_apple`, `is_bsd`, `is_linux`, `is_unix`, and `is_windows` are now `Sys.isapple`, `Sys.isbsd`,
  `Sys.islinux`, `Sys.isunix`, and `Sys.iswindows`, respectively. These are available in the `Compat.Sys`
  submodule. ([#22182])
@@ -484,7 +482,6 @@ includes this fix. Find the minimum version from there.
 [#18082]: https://github.com/JuliaLang/julia/issues/18082
 [#18629]: https://github.com/JuliaLang/julia/issues/18629
 [#18727]: https://github.com/JuliaLang/julia/issues/18727
-[#19088]: https://github.com/JuliaLang/julia/issues/19088
 [#19449]: https://github.com/JuliaLang/julia/issues/19449
 [#19635]: https://github.com/JuliaLang/julia/issues/19635
 [#19784]: https://github.com/JuliaLang/julia/issues/19784

src/Compat.jl

@@ -142,11 +142,6 @@ else
  end
 end
 
-# julia#19088
-if VERSION < v"0.6.0-dev.1256"
- Base.take!(io::Base.AbstractIOBuffer) = takebuf_array(io)
-end
-
 if VERSION < v"0.6.0-dev.1632"
  # To work around unsupported syntax on Julia 0.4
  include_string("export .&, .|")

test/runtests.jl

@@ -40,14 +40,6 @@ else
  end
 end
 
-# julia#19088
-let io = IOBuffer()
- write(io, "aaa")
- @test take!(io) == UInt8['a', 'a', 'a']
- write(io, "bbb")
- @test String(take!(io)) == "bbb"
-end
-
 let s = "Koala test: 🐨"
  @test transcode(UInt16, s) == UInt16[75,111,97,108,97,32,116,101,115,116,58,32,55357,56360]
  @test transcode(UInt32, s) == UInt32[75,111,97,108,97,32,116,101,115,116,58,32,128040]