How many EU countries called for Germany to be suspended from the EU after the G20 riots in Hamburg in July of 2017 which saw 17 people hospitalised? None. So why would they now call for Spain to be suspended after a smaller disturbance?
Every country which has a police force recognises that it may sometimes need to use force proportionately to maintain law and order. After an isolated incident in which force seems to have been used disproportionately by another country they may issue a diplomatic reminder of the need for proportionality, and some politicians have. E.g. Guy Verhofstadt, in an even-handed rebuke to both sides, considered that there was "disproportionate violence" on the part of the police.
But Article 7 clause 2 says that (my emphasis)
The European Council, acting by unanimity on a proposal by one third of the Member States or by the European Commission and after obtaining the consent of the European Parliament, may determine the existence of a serious and persistent breach by a Member State of the values referred to in Article 2 after inviting the Member State in question to submit its observations.
One event does not constitute a serious and persistent breach of the EU's values.