Revert "ENH: add PET support to niworkflows"

This reverts commit d139113.

Author: mnoergaard

niworkflows/interfaces/bids.py

@@ -225,7 +225,6 @@ class _BIDSDataGrabberOutputSpec(TraitedSpec):
     roi = OutputMultiObject(desc="output ROI images")
     t2w = OutputMultiObject(desc="output T2w images")
     flair = OutputMultiObject(desc="output FLAIR images")
-    pet = OutputMultiObject(desc="output PET images")
 
 
 class BIDSDataGrabber(SimpleInterface):
@@ -277,7 +276,7 @@ def _run_interface(self, runtime):
                 )
             )
 
-        for imtype in ["bold", "t2w", "flair", "fmap", "sbref", "roi", "pet"]:
+        for imtype in ["bold", "t2w", "flair", "fmap", "sbref", "roi"]:
             if not bids_dict[imtype]:
                 LOGGER.info(
                     'No "%s" images found for sub-%s', imtype, self.inputs.subject_id

niworkflows/utils/bids.py

@@ -233,7 +233,6 @@ def collect_data(
         "t2w": {"datatype": "anat", "suffix": "T2w", "part": ["mag", None]},
         "t1w": {"datatype": "anat", "suffix": "T1w", "part": ["mag", None]},
         "roi": {"datatype": "anat", "suffix": "roi"},
-        "pet": {"suffix": "pet"}
     }
     bids_filters = bids_filters or {}
     for acq, entities in bids_filters.items():