[Bug c/79632] New: params.def should not contain redundant comments

[roland.illig at gmx dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79632

            Bug ID: 79632
           Summary: params.def should not contain redundant comments
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: roland.illig at gmx dot de
  Target Milestone: ---

In params.def, PARAM_MAX_STORES_TO_SINK looks like this:

/* Maximum number of conditional store pairs that can be sunk.  */
DEFPARAM (PARAM_MAX_STORES_TO_SINK,
          "max-stores-to-sink",
          "Maximum number of conditional store pairs that can be sunk.",
          2, 0, 0)

The comment is an exact copy of the string literal. Therefore it is redundant
and be removed.

When fixing this, please check for similar occurrences in the same file.