Delete neofs_test_lib path

Signed-off-by: Yulia Kovshova <y.kovshova@yadro.com>

src/frostfs_testlib/defaults.py

@@ -0,0 +1,10 @@
+class Options:
+    DEFAULT_SHELL_TIMEOUT = 90
+
+    @staticmethod
+    def get_default_shell_timeout():
+        return Options.DEFAULT_SHELL_TIMEOUT
+
+    @staticmethod
+    def set_default_shell_timeout(value: int):
+        Options.DEFAULT_SHELL_TIMEOUT = value