diff --git a/.travis.yml b/.travis.yml
index 6a7389553..a2ce3c8b6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -61,7 +61,7 @@ script:
   - |
     if [[ "${TRAVIS_OS_NAME}" == "windows" ]]; then
       powershell -Command 'Set-ExecutionPolicy RemoteSigned -scope CurrentUser'
-      BAZEL_VERSION=host powershell -File ./${TEST_SCRIPT}.ps1
-    else
-      bash ./${TEST_SCRIPT}.sh ci
+      export JAVA_HOME='c:\\\\java8'
+      export BAZEL_VERSION=host
     fi
+    bash ./${TEST_SCRIPT}.sh ci
diff --git a/test_reproducibility.ps1 b/test_reproducibility.ps1
deleted file mode 100644
index e70786fc9..000000000
--- a/test_reproducibility.ps1
+++ /dev/null
@@ -1,3 +0,0 @@
-Set-StrictMode -Version latest
-$ErrorActionPreference = 'Stop'
-
diff --git a/test_rules_scala.ps1 b/test_rules_scala.ps1
deleted file mode 100644
index 29bfc43bc..000000000
--- a/test_rules_scala.ps1
+++ /dev/null
@@ -1,36 +0,0 @@
-#!/usr/bin/env pwsh
-
-Set-StrictMode -Version latest
-$ErrorActionPreference = 'Stop'
-
-$env:JAVA_HOME='c:\\java8'
-
-function bazel() {
-    Write-Output ">> bazel $args"
-    $global:lastexitcode = 0
-    $backupErrorActionPreference = $script:ErrorActionPreference
-    $script:ErrorActionPreference = "Continue"
-    & bazel.exe @args 2>&1 | %{ "$_" }
-    $script:ErrorActionPreference = $backupErrorActionPreference
-    if ($global:lastexitcode -ne 0 -And $args[0] -ne "shutdown") {
-        Write-Output "<< bazel $args (failed, exit code: $global:lastexitcode)"
-        throw ("Bazel returned non-zero exit code: $global:lastexitcode")
-    }
-    Write-Output "<< bazel $args (ok)"
-}
-
-bazel build //test/...
-bazel shutdown
-
-bazel test `
-    //test:HelloLibTest `
-    //test:HelloLibTestSuite_test_suite_HelloLibTest.scala `
-    //test:HelloLibTestSuite_test_suite_HelloLibTest2.scala `
-    //test:LongTestSuiteNamesSuite `
-    //test:TestFilterTests `
-    //test:no_sig `
-    //test/aspect:aspect_test `
-    //test/aspect:scala_test `
-    //test/proto:test_blacklisted_proto `
-    //test/src/main/scala/scalarules/test/resource_jars:resource_jars `
-    //test/src/main/scala/scalarules/test/twitter_scrooge/...