getting rid of codecov and wartremover

.travis.yml

@@ -23,5 +23,4 @@ jobs:
         - NAME="TESTS"
         - SCALAC_FATAL_WARNINGS=true
       script:
-        - pip install --user codecov
-        - sbt coverage +test coverageReport && codecov
+        - sbt +test

build.sbt

@@ -1,5 +1,3 @@
-import wartremover.Wart
-
 lazy val root = project.
   in(file(".")).
   aggregate(rainierBase, rainierCompute, rainierSampler, rainierCore, rainierNotebook).
@@ -14,19 +12,6 @@ lazy val root = project.
 
 scalafmtOnCompile in ThisBuild := true
 
-// see https://www.wartremover.org/doc/warts.html for the full list.
-wartremoverErrors in (Compile, compile) ++= Seq(
-  Wart.EitherProjectionPartial,
-  Wart.OptionPartial,
-  Wart.Product,
-  Wart.PublicInference,
-  Wart.Return,
-  Wart.Serializable,
-  Wart.StringPlusAny,
-  Wart.Throw,
-  Wart.TryPartial
-)
-
 def getPublishTo(snapshot: Boolean) = {
   val nexus = "https://oss.sonatype.org/"
   if (snapshot) {
@@ -135,8 +120,6 @@ lazy val rainierNotebook = project.
         "sh.almond" %% "jupyter-api" % V.almond)
   )
 
-// test modules
-
 lazy val rainierBenchmark = project.
   in(file("rainier-benchmark")).
   settings(name := "rainier-benchmark").

project/plugins.sbt

@@ -5,6 +5,4 @@ addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.1.1")
 addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.3.4")
 addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.14.6")
 addSbtPlugin("org.scalastyle" %% "scalastyle-sbt-plugin" % "1.0.0")
-addSbtPlugin("org.scoverage" % "sbt-scoverage" % "1.6.1")
-addSbtPlugin("org.wartremover" % "sbt-wartremover" % "2.4.3")
 addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.9.0")