chore: remove repetitive words (#7206)

Signed-off-by: availhang <mayangang@outlook.com>

control_plane/src/background_process.rs

@@ -294,7 +294,7 @@ where
     //      is in state 'taken' but the thread that would unlock it is
     //      not there.
     //   2. A rust object that represented some external resource in the
-    //      parent now got implicitly copied by the the fork, even though
+    //      parent now got implicitly copied by the fork, even though
     //      the object's type is not `Copy`. The parent program may use
     //      non-copyability as way to enforce unique ownership of an
     //      external resource in the typesystem. The fork breaks that

control_plane/src/endpoint.rs

@@ -12,7 +12,7 @@
 //!
 //! The endpoint is managed by the `compute_ctl` binary. When an endpoint is
 //! started, we launch `compute_ctl` It synchronizes the safekeepers, downloads
-//! the basebackup from the pageserver to initialize the the data directory, and
+//! the basebackup from the pageserver to initialize the data directory, and
 //! finally launches the PostgreSQL process. It watches the PostgreSQL process
 //! until it exits.
 //!