16463891 : cannot drop grant

Problem Summary
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issue while applying p16463891_111160

Problem Description
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as per patch readme we are unbale to perform the same.

a) Step2 of Patch readme refers to grant DROP Privilege as show below

2. Execute the following commands to drop types being redefined:

  GRANT DROP ON Axf_Lookups_Segment_Value_Col TO <AXF DB user>
  GRANT DROP ON Axf_Lookups_Segment_Obj TO <AXF DB user>
  GRANT DROP ON Axf_Lookups TO <AXF DB user>


 per patch readme we are unbale to perform below steps

SQL> GRANT DROP ON AXF_LOOKUPS_SEGMENT_OBJ TO AXF
  *
ERROR at line 1:
ORA-00990: missing or invalid privilege