Revert "Directly compare executable paths"

This reverts commit f09ae42.

julia/core.py

@@ -299,12 +299,6 @@ def juliainfo(runtime='julia'):
     return JuliaInfo(*args)
 
 
-def is_same_path(a, b):
-    a = os.path.realpath(os.path.normcase(a))
-    b = os.path.realpath(os.path.normcase(b))
-    return a == b
-
-
 def is_compatible_exe(jlinfo, _debug=lambda *_: None):
     """
     Determine if Python used by PyCall.jl is compatible with this Python.
@@ -329,14 +323,6 @@ def is_compatible_exe(jlinfo, _debug=lambda *_: None):
         _debug(sys.executable, "is statically linked.")
         return False
 
-    # Note that the following check is OK since statically linked case
-    # is already excluded.
-    if is_same_path(jlinfo.pyprogramname, sys.executable):
-        # In macOS and Windows, find_libpython does not work as good
-        # as in Linux.  We add this shortcut so that PyJulia can work
-        # in those environments.
-        return True
-
     py_libpython = find_libpython()
     jl_libpython = normalize_path(jlinfo.libpython)
     _debug("py_libpython =", py_libpython)