@Tommp,
In order to delete a table from metadata, you need to have the following permissions:
ReadMetadata (RM), WriteMetadata (WM) on a library object
ReadMetadata (RM), WriteMemberMetadata (WMM) on a folder associated with that library
ReadMetadata (RM), WriteMetadata (WM) on a table itself
Please see more details here: Permissions by Task
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