[python] Remove fragile test

This test is fragile because we cannot be sure that RSS is a stable metric to
evaluate the absence of a memory leak. The test itself has already demonstrated
to be limited, in fact it was already modified or relaxed twice before:

038054b
015f440

It now starts also causing intermittent failures on MacOS which are not
representative of a new memory leak, so it is better to just remove it.

Author: vepadulano

bindings/pyroot/pythonizations/test/CMakeLists.txt

@@ -194,7 +194,4 @@ endif()
 # TComplex pythonizations
 ROOT_ADD_PYUNITTEST(pyroot_tcomplex tcomplex_operators.py)
 
-# Tests with memory usage
-ROOT_ADD_PYUNITTEST(pyroot_memory memory.py)
-
 ROOT_ADD_PYUNITTEST(regression_18441 regression_18441.py)