Remove dask tests (#25698)

diff --git a/sdks/python/test-suites/tox/common.gradle b/sdks/python/test-suites/tox/common.gradle
index 5967381..ee183df 100644
--- a/sdks/python/test-suites/tox/common.gradle
+++ b/sdks/python/test-suites/tox/common.gradle
@@ -26,8 +26,8 @@
 toxTask "testPy${pythonVersionSuffix}Cloud", "py${pythonVersionSuffix}-cloud", "${posargs}"
 test.dependsOn "testPy${pythonVersionSuffix}Cloud"
 
-toxTask "testPy${pythonVersionSuffix}Dask", "py${pythonVersionSuffix}-dask", "${posargs}"
-test.dependsOn "testPy${pythonVersionSuffix}Dask"
+// toxTask "testPy${pythonVersionSuffix}Dask", "py${pythonVersionSuffix}-dask", "${posargs}"
+// test.dependsOn "testPy${pythonVersionSuffix}Dask"
 
 toxTask "testPy${pythonVersionSuffix}Cython", "py${pythonVersionSuffix}-cython", "${posargs}"
 test.dependsOn "testPy${pythonVersionSuffix}Cython"