Drop drop lib folder and all (arguably obsolete) dependent usages

compiler/testData/integration/smoke/scriptWithClasspath/script.expected

@@ -1,4 +0,0 @@
-OUT:
-interface javax.inject.Inject
-
-Return code: 0

compiler/testData/integration/smoke/scriptWithClasspath/script.kts

@@ -1,3 +0,0 @@
-import javax.inject.Inject
-
-println(Inject::class.java)

compiler/tests/org/jetbrains/kotlin/integration/CompilerSmokeTest.java

@@ -61,10 +61,6 @@ public class CompilerSmokeTest extends CompilerSmokeTestBase {
         runCompiler("script", "-script", "script.kts", "--", "hi", "-name", "Marty", "--", "there");
     }
 
-    public void testScriptWithClasspath() throws Exception {
-        runCompiler("script", "-cp", new File("lib/javax.inject.jar").getAbsolutePath(), "-script", "script.kts");
-    }
-
     public void testScriptException() throws Exception {
         runCompiler("script", "-script", "script.kts");
     }