remove rst extension from inline doc links

Author: czardoz

Doc/howto/perf_profiling.rst

@@ -25,7 +25,7 @@ enabled, the interpreter will interpose a small piece of code compiled on the
 fly before the execution of every Python function and it will teach ``perf`` the
 relationship between this piece of code and the associated Python function using
 `perf map files`_. If you're an extension author interested in having your extension
-write to the perf map files, refer to :doc:`the C-API <../c-api/perfmaps.rst>`.
+write to the perf map files, refer to :doc:`the C-API <../c-api/perfmaps>`.
 
 .. note::
 

Misc/NEWS.d/next/C API/2023-04-14-23-05-52.gh-issue-103295.GRHY1Z.rst

@@ -1,5 +1,5 @@
 Introduced :c:func:`PyUnstable_WritePerfMapEntry`, :c:func:`PyUnstable_PerfMapState_Init` and
 :c:func:`PyUnstable_PerfMapState_Fini`. These allow extension modules (JIT compilers in
 particular) to write to perf-map files in a thread safe manner. The
-:doc:`perf profiling feature <../howto/perf_profiling.rst>` also uses these APIs to write
+:doc:`../howto/perf_profiling` also uses these APIs to write
 entries in the perf-map file.