title: Cypher - Remove all properties with a particular value
body: <p>I'm searching for a way to remove every property, of any node in the DB, having a specific value using Cypher.</p>
  
  <p><strong>Context</strong><br/>
  I got a csv bulk file from a relational table with plenty of NULL values. <code>LOAD CSV</code> brings them as values. Removing them (replacing them with empty '' within the csv file) resulted in the same issue (properties without values). Tried many (many) Cypher operations to discard NULL values but nothing worked.</p>
  
  <p>Can't find anything in the docs neither by Googling. Can this be done using only Cypher? It seems to me not (yet) supported.</p>
  
  <p>Thanks.</p>