meta: Drop now pointless manual -dbg packaging

With the autodebug package generation logic, specifically setting FILES_${PN}-dbg
isn't needed in most cases, we can remove them.

(From OE-Core rev: 3ab59d49dd7c18e194b58d1248b4b87709b5a738)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/expect/expect_5.45.bb

@@ -51,9 +51,6 @@ EXTRA_OECONF += "--with-tcl=${STAGING_LIBDIR} \
                 "
 EXTRA_OEMAKE_install = " 'SCRIPTS=' "
 
-FILES_${PN}-dbg += "${libdir}/${BPN}${PV}/.debug \
-                    ${libdir}/.debug \
-                   "
 FILES_${PN}-dev = "${libdir_native}/expect${PV}/libexpect*.so \
                    ${includedir}/expect.h \
                    ${includedir}/expect_tcl.h \