Remove unused apt dependency

libcanberra-gtk-module is not used to build renode from the source code.

Change-Id: I2010dd294702f18ddb0e8a5c7f6e980416541075

install-prereqs.sh

diff --git a/install-prereqs.sh b/install-prereqs.sh
index 0018139..d86c893 100755
--- a/install-prereqs.sh
+++ b/install-prereqs.sh
@@ -40,7 +40,6 @@
     graphviz
     haskell-stack
     lcov
-    libcanberra-gtk-module
     libclang-dev
     libcunit1-dev
     libc6-dev