Remove failing test in sage.env that test importing sage.all

Author: tobiasdiez

src/sage/env.py

@@ -2,27 +2,6 @@
 r"""
 Sage Runtime Environment
 
-Verify that importing ``sage.all`` works in Sage's Python without any
-``SAGE_`` environment variables, and has the same ``SAGE_ROOT`` and
-``SAGE_LOCAL`` (see also :issue:`29446`). If ``SAGE_ROOT`` is a path,
-we normalize it, but keep in mind that ``SAGE_ROOT`` may also be
-``None``::
-
-    sage: env = {k:v for (k,v) in os.environ.items() if not k.startswith("SAGE_")}
-    sage: from subprocess import check_output
-    sage: module_name = "sage.all"   # hide .all import from the linter
-    sage: cmd  = f"from {module_name} import SAGE_ROOT, SAGE_LOCAL;"
-    sage: cmd +=  "from os.path import samefile;"
-    sage: if SAGE_ROOT is None:
-    ....:     cmd +=  "s1 = SAGE_ROOT is None;"
-    ....: else:
-    ....:     cmd += f"s1 = samefile(SAGE_ROOT, '{SAGE_ROOT}');"
-    sage: cmd += f"s2 = samefile(SAGE_LOCAL, '{SAGE_LOCAL}');"
-    sage: cmd += "print(s1 and s2);"
-    sage: out = check_output([sys.executable, "-c", cmd], env=env).decode().strip()   # long time
-    sage: out == "True"                                                               # long time
-    True
-
 AUTHORS:
 
 - \R. Andrew Ohana (2012): initial version