remove extract_zstd

it was moved to https://github.com/gemini3d/mat_gemini

Author: scivision

+stdlib/extract_zstd.m

@@ -15,24 +15,6 @@ function java_required(tc)
 
 methods (Test, ParameterCombination = 'sequential')
 
-function test_extract(tc)
-import matlab.unittest.constraints.IsFile
-
-r = fileparts(mfilename('fullpath'));
-fn = stdlib.posix(r) + "/hello.tar.zst";
-
-tc.assumeThat(fn, IsFile)
-
-tc.assumeNotEmpty(stdlib.which("cmake"), "CMake not available")
-
-td = stdlib.posix(tc.createTemporaryFolder());
-
-stdlib.extract_zstd(fn, td)
-tc.verifyThat(td + "/test/hello.txt", IsFile)
-
-end
-
-
 function test_hash(tc, type, hash)
 
 r = fileparts(mfilename('fullpath'));