Improve interpreter performance slightly

src/interpreter/InteractiveLispInterpreter.java

@@ -18,7 +18,6 @@ public class InteractiveLispInterpreter extends LispInterpreter {
 
     @Override
     protected void applyFinishingTouches() {
-        environment.getOutput().println();
         environment.getOutput().println(environment.decoratePrompt(""));
         environment.getOutput().flush();
     }

src/terminal/LispTerminal.java

@@ -412,7 +412,6 @@ public class LispTerminal {
         for (int c = outputReader.read(); c != EOF; c = outputReader.read())
             processOutput((char) c);
 
-        terminal.setCursorVisible(true);
         terminal.flush();
         terminal.close();
     }
@@ -429,9 +428,7 @@ public class LispTerminal {
     }
 
     private synchronized void writeSegment() {
-        terminal.setCursorVisible(false);
         printSegmentCharacters();
-        terminal.setCursorVisible(true);
         outputSegment = "";
         redisplayInput();
         terminal.flush();

test/interpreter/LispInterpreterTest.java

@@ -172,7 +172,7 @@ public class LispInterpreterTest {
         builder.setInput(createInputStreamFromString("'pickle"), "input");
         builder.build().interpret();
 
-        assertEquals(format("{0}\n{1}\n{0}\n\n", PROMPT, "PICKLE"), outputStream.toString());
+        assertEquals(format("{0}\n{1}\n{0}\n", PROMPT, "PICKLE"), outputStream.toString());
         assertEquals("", errorOutputStream.toString());
     }