docs: Fix a typo in pkgctl-auth.1

Component: pkgctl auth

doc/man/pkgctl-auth.1.asciidoc

@@ -3,7 +3,7 @@ pkgctl-auth(1)
 
 Name
 ----
-pkgctl-auth - Authenticate with serivces like GitLab.
+pkgctl-auth - Authenticate with services like GitLab.
 
 Synopsis
 --------

src/lib/version/check.sh

@@ -350,12 +350,6 @@ nvchecker_check_config() {
 		printf "non-pkgbase section not supported in %s: %s" "${config}" "${property}"
 		return 1
 	fi
-
-	# check if the config is using the 'cmd' source
-	if grep --extended-regexp --quiet '^\s*source\s*=\s*["'\'']cmd["'\'']\s*$' "${config}"; then
-		printf "using the 'cmd' source in %s is disallowed" "${config}"
-		return 1
-	fi
 }
 
 nvchecker_check_error() {