output from writerand is unused

so doesn't need to be written.

See man 1 openssl for "Random State Options", -rand option reads
the output from -writerand and that's unused here and apparently
unnecessary since OpenSSL 1.1.1

Signed-off-by: Caolán McNamara <[email protected]>
Change-Id: Ia3709f993b71644be8f0b816a88212efc7b76092

Author: caolanm

docker/from-packages/scripts/start-collabora-online.sh

@@ -8,7 +8,6 @@ if test "${DONT_GEN_SSL_CERT-set}" = set; then
 mkdir -p /tmp/ssl/
 cd /tmp/ssl/
 mkdir -p certs/ca
-openssl rand -writerand /opt/cool/.rnd
 openssl genrsa -out certs/ca/root.key.pem 2048
 openssl req -x509 -new -nodes -key certs/ca/root.key.pem -days 9131 -out certs/ca/root.crt.pem -subj "/C=DE/ST=BW/L=Stuttgart/O=Dummy Authority/CN=Dummy Authority"
 mkdir -p certs/servers

docker/from-source-gh-action/start-collabora-online.sh

@@ -8,7 +8,6 @@ if test "${DONT_GEN_SSL_CERT-set}" = set; then
 mkdir -p /tmp/ssl/
 cd /tmp/ssl/
 mkdir -p certs/ca
-openssl rand -writerand /opt/cool/.rnd
 openssl genrsa -out certs/ca/root.key.pem 2048
 openssl req -x509 -new -nodes -key certs/ca/root.key.pem -days 9131 -out certs/ca/root.crt.pem -subj "/C=DE/ST=BW/L=Stuttgart/O=Dummy Authority/CN=Dummy Authority"
 mkdir -p certs/servers