Describe the bug
Reference to deprecated error code in comments

Should remove it from here as well

cFE/modules/cfe_testcase/src/tbl_content_mang_test.c

Line 56 in a0c2de6

/* This is a very unintuitive error message. CFE_TBL_ERR_FILE_NOT_FOUND would be more accurate */

_Originally posted by @zanzaben in #1859 (review)

To Reproduce
Inspect tbl_content_mang_test

Expected behavior
No references to deleted items

Code snips
See above

System observed on:
Source code coment

Additional context
See #1859

Reporter Info
@astrogeco