Remove sys._deactivate_opcache() now that is not needed (pythonGH-27154)

Author: pablogsal

Lib/test/libregrtest/setup.py

@@ -63,7 +63,6 @@ def setup_tests(ns):
 
     if ns.huntrleaks:
         unittest.BaseTestSuite._cleanup = False
-        sys._deactivate_opcache()
 
     if ns.memlimit is not None:
         support.set_memlimit(ns.memlimit)

Python/ceval.c

@@ -106,19 +106,6 @@ static long dxp[256];
 #endif
 #endif
 
-/* per opcode cache */
-static int opcache_min_runs = 1024;  /* create opcache when code executed this many times */
-#define OPCODE_CACHE_MAX_TRIES 20
-
-// This function allows to deactivate the opcode cache. As different cache mechanisms may hold
-// references, this can mess with the reference leak detector functionality so the cache needs
-// to be deactivated in such scenarios to avoid false positives. See bpo-3714 for more information.
-void
-_PyEval_DeactivateOpCache(void)
-{
-    opcache_min_runs = 0;
-}
-
 #ifndef NDEBUG
 /* Ensure that tstate is valid: sanity check for PyEval_AcquireThread() and
    PyEval_RestoreThread(). Detect if tstate memory was freed. It can happen

Python/clinic/sysmodule.c.h

@@ -1971,22 +1971,6 @@ sys_getandroidapilevel_impl(PyObject *module)
 }
 #endif   /* ANDROID_API_LEVEL */
 
-
-/*[clinic input]
-sys._deactivate_opcache
-
-Deactivate the opcode cache permanently
-[clinic start generated code]*/
-
-static PyObject *
-sys__deactivate_opcache_impl(PyObject *module)
-/*[clinic end generated code: output=00e20982bd012122 input=501eac146735ccf9]*/
-{
-    _PyEval_DeactivateOpCache();
-    Py_RETURN_NONE;
-}
-
-
 static PyMethodDef sys_methods[] = {
     /* Might as well keep this in alphabetic order */
     SYS_ADDAUDITHOOK_METHODDEF
@@ -2040,7 +2024,6 @@ static PyMethodDef sys_methods[] = {
     SYS_GET_ASYNCGEN_HOOKS_METHODDEF
     SYS_GETANDROIDAPILEVEL_METHODDEF
     SYS_UNRAISABLEHOOK_METHODDEF
-    SYS__DEACTIVATE_OPCACHE_METHODDEF
     {NULL,              NULL}           /* sentinel */
 };