Removed all remaining references to the InputFilePeeker

Dropped either complete files or individual functions that unconditionally relied on the InputFilePeeker. Also dropped the clients of such files/functions.

Closes ATEAM-716

CC @fwinkl @harkusha @amete @ssnyder (Please feel free to tag more people as needed. Thanks)

PhysicsAnalysis/D3PDMaker/D3PDMakerCoreComps/python/release_version.py

-# Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
-
-#
-# @file D3PDMakerCoreComps/python/release_version.py
-# @author scott snyder <snyder@bnl.gov>
-# @date Mar, 2010
-# @brief Try to determine the release version for the current input file.
-#
-
-
-def release_version():
-    """Return the release version of the current input file.
-The version is returned as a list of integers; i.e., [15, 5, 3].
-None is returned if no version string is present in the input file.
-An empty list is returned if we don't recognize the format
-of the version string.  We return [99, 0] if we're not reading
-a pool file (eg, raw).
-"""
-
-    from RecExConfig.InputFilePeeker import inputFileSummary
-    try:
-        if inputFileSummary['file_type'] != 'pool':
-            return [99, 0]
-        release = inputFileSummary['metadata']['/TagInfo']['AtlasRelease']
-    except KeyError:
-        return None
-
-    rlist = release.split ('-')
-    if len(rlist) < 2:
-        return []
-
-    try:
-        rlist = [int(x) for x in rlist[1].split ('.')]
-    except ValueError:
-        return []
-
-    if len(rlist) < 2:
-        return []
-
-    return rlist
-
-
-def _version_compare (rlist, s):
-    """Helper for at_least_version.
-
->>> _version_compare ([1,2,3], "1.2.3")
-True
->>> _version_compare ([1,2,3], "1.2.4")
-False
->>> _version_compare ([1,2,3], "1.2.2")
-True
->>> _version_compare (None, "1.2.3")
-False
->>> _version_compare ([], "1.2.3")
-True
->>> _version_compare ([1,2,3,4], "1.2.3")
-True
->>> _version_compare ([1,2], "1.2.3")
-False
-"""
-    slist = [int(x) for x in s.split ('.')]
-
-    if rlist is None:
-        return False
-    if rlist == []:
-        return True
-
-    while len(slist) > 0 and len(rlist) > 0 and slist[0] == rlist[0]:
-        del slist[0]
-        del rlist[0]
-
-    if len(slist) == 0 and len(rlist) == 0:
-        return True
-    if len(slist) > 0 and len(rlist) > 0:
-        return rlist[0] >= slist[0]
-    if len(slist) > 0:
-        return False
-    return True
-    
-
-def at_least_version (s):
-    """Test to see if the version of the input file is at least S.
-
-S is interpreted as a version number, like 16.6.3.
-Test to see if the version recorded in the input file is at least this.
-Special cases: If no version number is recorded, we return False
-(perhaps the file was processed before version numbers were stored).
-If we don't recognize the version format, we return True (could be
-from a local test build).
-"""
-    return _version_compare (release_version(), s)
-    
-    
-if __name__ == "__main__":
-    import doctest
-    doctest.testmod()
-