Remove prebuild step

bin/test.js

@@ -18,8 +18,8 @@ const args = [
   './lib/**/*test.js'
 ];
 
-cp.spawnSync('./node_modules/.bin/mocha', args, {
+cp.spawnSync(path.resolve(__dirname, '../node_modules/.bin/mocha'), args, {
   cwd: path.resolve(__dirname, '..'),
-  stdio: 'inherit',
-  env
+  env,
+  stdio: 'inherit'
 });

package.json

@@ -44,7 +44,6 @@
     "test": "node ./bin/test.js",
     "posttest": "npm run lint",
     "test-api": "mocha \"**/*.api.js\"",
-    "prebuild": "tsc -b ./src/tsconfig.all.json",
     "build": "tsc -b ./src/tsconfig.all.json",
     "prepare": "npm run build",
     "prepublishOnly": "npm run package",