support/testing: TestPythonPy3Crossbar: use python base configuration

The base configuration now provide a glibc toolchain,
we can safely switch to it.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

support/testing/tests/package/test_python_crossbar.py

@@ -4,14 +4,8 @@ import os
 
 class TestPythonPy3Crossbar(TestPythonPackageBase):
     __test__ = True
-    # Need to use a different toolchain than the default due to
-    # python-cryptography using Rust (not available with uclibc)
-    config = \
+    config = TestPythonPackageBase.config + \
         """
-        BR2_arm=y
-        BR2_TOOLCHAIN_EXTERNAL=y
-        BR2_TOOLCHAIN_EXTERNAL_BOOTLIN=y
-        BR2_TOOLCHAIN_EXTERNAL_BOOTLIN_ARMV5_EABI_GLIBC_STABLE=y
         BR2_PACKAGE_PYTHON3=y
         BR2_PACKAGE_PYTHON_CROSSBAR=y
         BR2_TARGET_ROOTFS_EXT2=y