remove commented out tests

Author: jw3126

test/test_core.jl

@@ -178,68 +178,6 @@ end
     @test compose(la, id) === la
 end
 
-# @testset "Mutability" begin
-# 
-#     @testset "array" begin
-#         v_init = [1,2,3]
-#         v = v_init
-#         @set! v[1] = 2
-#         @test v_init[1] == 2
-#         @test v === v_init
-# 
-#         # Julia 0.7 with --depwarn=error:
-#         is_deperror07 = VERSION >= v"0.7-" && Base.JLOptions().depwarn == 2
-# 
-#         v = randn(3)
-#         # @set! v[:] .= 0  # dot-call not supported
-#         @test_broken v == [0,0,0.]
-#         if is_deperror07
-#             v[:] .= 1
-#         else
-#             v = @test_deprecated07 (@set! v[:] = 1; v)
-#         end
-#         @test v == [1,1,1.]
-#         if is_deperror07
-#             v[2:3] .= 4
-#         else
-#             v = @test_deprecated07 (@set! v[2:3] = 4; v)
-#         end
-#         @test v == [1,4,4]
-#         # @set! v[1:2] .= 5  # dot-call not supported
-#         @test_broken v == [5,5,4]
-#     end
-# 
-#     @testset "@set vs @set!" begin
-#         m1 = M(1,2)
-#         m2 = @set m1.a = 10
-#         @test !(m2 === m1)
-#         @test m1.a === 1
-#         @test m2.a === 10
-#         m3 = @set! m1.a = 100
-#         @test m3 === m1
-#         @test m1.a === 100
-#     end
-# 
-#     @testset "composition only mutates the innermost" begin
-#         m_init = M(1,2)
-#         m = m_init
-#         @set! m.a = 10
-#         @test m_init.a == 10
-#         @test m === m_init
-#         m_inner_init = M(1,2)
-#         m_init = M(m_inner_init, 2)
-#         m = m_init
-#         @set! m.a.a = 2
-#         @test m.a.a == 2
-#         @test m === m_init
-#         @test m.a === m_inner_init
-#     end
-# 
-#     obj = (1,)
-#     @set! obj[1] = 2
-#     @test obj === (2,)
-# end
-
 struct A{X, Y}
     x::X
     y::Y