MAINT: Stronger check for dpctl availability (#3102)

* stronger check for dpctl availability

* remove function that's only used once

Author: david-cortes-intel

onedal/utils/_third_party.py

@@ -28,44 +28,18 @@
 
 from daal4py.sklearn._utils import _package_check_version
 
-
-@functools.lru_cache(maxsize=256, typed=False)
-def is_dpctl_available(version=None):
-    """Check availability of DPCtl package.
-
-    Parameters
-    ----------
-    version : str or None, default=None
-        Minimum supported dpctl version if installed.
-        Secondary version check skipped if set to None.
-
-    Returns
-    -------
-    dpctl_available : bool
-        Flag describing import success.
-    """
-    try:
-        import dpctl
-
-        dpctl_available = True
-    except ImportError:
-        dpctl_available = False
-    if dpctl_available and version is not None:
-        dpctl_available = _package_check_version(version, dpctl.__version__)
-    return dpctl_available
-
-
 # Note: The dpctl package provides SYCL infrastructure (e.g. SyclQueue)
 # which is loaded as normal as it is preferred over included backend
 # replacements in the core onedal python module.
-dpctl_available = is_dpctl_available()
-
-if dpctl_available:
+try:
     from dpctl import SyclQueue
-else:
+
+    dpctl_available = True
+except ImportError:
     from onedal import _default_backend as backend
 
     SyclQueue = backend.SyclQueue
+    dpctl_available = False
 
 
 def lazy_import(*module_names: str) -> Callable: