Disable sbt-api-mappings as it doesn't work with scala release candidates

Author: fiadliel

project/plugins.sbt

@@ -3,7 +3,7 @@ addSbtPlugin("io.spray"           % "sbt-boilerplate" % "0.6.0")
 addSbtPlugin("org.tpolecat"       % "tut-plugin"      % "0.4.4")
 addSbtPlugin("com.geirsson"       % "sbt-scalafmt"    % "0.4.5")
 
-addSbtPlugin("com.thoughtworks.sbt-api-mappings" % "sbt-api-mappings" % "0.2.4")
+// addSbtPlugin("com.thoughtworks.sbt-api-mappings" % "sbt-api-mappings" % "0.2.4")
 
 addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "1.1")
 addSbtPlugin("com.jsuereth"   % "sbt-pgp"      % "1.0.0")