Manually clean up .patch_storage

According to

How To Avoid Disk Full Issues Because OPatch Backups Take Big Amount Of Disk Space. (Doc ID 550522.1)

after running `opatch util cleanup', you can do more cleanup:

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Additionally, further cleanup of the $ORACLE_HOME/.patch_storage is possible if there are directories from patches applied to previous versions. This can be done manually as follows:

1.  run command:

$ opatch lsinventory

2.  Remove all the sub-directories from $ORACLE_HOME/.patch_storage that are not present in the list of installed patches. Directory names would be prefaced with the patchid for example:

13343438_<timestamp>

Note: List of patches include the sub patches of install Bundle patches, PSU, GI PSU.  Hence you should