combine bugprone-unsafe-functions release notes

Author: zimirza

clang-tools-extra/docs/ReleaseNotes.rst

@@ -189,13 +189,6 @@ Changes in existing checks
   <clang-tidy/checks/bugprone/branch-clone>` check to improve detection of
   branch clones by now detecting duplicate inner and outer if statements.
 
-- New unsafe functions checks :doc:`bugprone-unsafe-functions
-  <clang-tidy/checks/bugprone/unsafe-functions>` were added to clang-tidy.
-
-- Improved :doc:`bugprone-unsafe-functions
-  <clang-tidy/checks/bugprone/unsafe-functions>`, added `ctime` and `localtime`
-  to unsafe functions check in clang-tidy.
-
 - Improved :doc:`bugprone-casting-through-void
   <clang-tidy/checks/bugprone/casting-through-void>` check to suggest replacing
   the offending code with ``reinterpret_cast``, to more clearly express intent.
@@ -242,13 +235,10 @@ Changes in existing checks
   `bsl::optional` and `bdlb::NullableValue` from
   <https://github.com/bloomberg/bde>_.
 
-- Improved :doc:`bugprone-unsafe-functions
-  <clang-tidy/checks/bugprone/unsafe-functions>` by adding ``ctime`` and
-  ``localtime`` functions.
-
 - Improved :doc:`bugprone-unsafe-functions
   <clang-tidy/checks/bugprone/unsafe-functions>` check to allow specifying
-  additional functions to match.
+  additional functions to match. Added `ctime` and `localtime`
+  to unsafe functions check in clang-tidy.
 
 - Improved :doc:`bugprone-use-after-move
   <clang-tidy/checks/bugprone/use-after-move>` to avoid triggering on