gnu: rnnoise: Unhide and rename variable.

* gnu/packages/xiph.scm (xiph-rnnoise): Rename to…
(rnnoise): …this.  Adjust all users.
[properties]: Remove HIDDEN? property as it is no longer ambiguous.

gnu/packages/telegram.scm

@@ -572,7 +572,7 @@ Telegram project, for its use in telegram desktop client.")
        ("qtwayland" ,qtwayland)
        ("range-v3" ,range-v3)
        ("rlottie" ,rlottie-for-telegram-desktop)
-       ("rnnoise" ,xiph-rnnoise)
+       ("rnnoise" ,rnnoise)
        ("tgcalls-source"
         ,(origin
            (method git-fetch)

gnu/packages/telephony.scm

@@ -650,7 +650,7 @@ address of one of the participants.")
            speech-dispatcher
            speex ; avoid bundled
            speexdsp ; avoid bundled
-           ;; xiph-rnnoise ; TODO: unbundle rnnoise
+           ;; rnnoise ; TODO: unbundle rnnoise
            ))
     (native-inputs
      (list pkg-config python qttools-5))

gnu/packages/xiph.scm

@@ -499,7 +499,7 @@ icecast server.  It handles the socket connection, the timing of the data,
 and prevents bad data from getting to the icecast server.")
     (license license:gpl2+)))
 
-(define-public xiph-rnnoise
+(define-public rnnoise
   ;; No upstream release
   (let ((commit "7f449bf8bd3b933891d12c30112268c4090e4d59")
         (revision "0"))
@@ -526,8 +526,4 @@ and prevents bad data from getting to the icecast server.")
 neural network.  The algorithm is described in Jean-Marc Valin's paper
 @cite{A Hybrid DSP/Deep Learning Approach to Real-Time Full-Band Speech
 Enhancement}.")
-     (license license:bsd-3)
-     (properties
-      ;; There's no public release and a conflicting package, so hide it for
-      ;; now.
-      `((hidden? . #t))))))
+     (license license:bsd-3))))