Remove old Gen script for running debug tests

Author: adpi2

Diff for: .gitignore

@@ -62,7 +62,6 @@ testlogs/
 
 # Put local stuff here
 local/
-compiler/test/debug/Gen.jar
 
 /bin/.cp
 

Diff for: compiler/test/debug/Gen

@@ -26,71 +26,6 @@ $ jdb -attach 5005 -sourcepath tests/debug/
 
 You can run `help` for commands that supported by JDB.
 
-## Debug Automatically with Expect
-
-### 1. Annotate the source code with debug information.
-
-Following file (`tests/debug/while.scala`) is an example of annotated source code:
-
-```scala
-object Test {
-
-  def main(args: Array[String]): Unit = {
-    var a = 1 + 2
-    a = a + 3
-    a = 4 + 5 // [break] [step: while]
-
-    while (a * 8 < 100) { // [step: a += 1]
-      a += 1              // [step: while] [cont: print]
-    }
-
-    print(a) // [break] [cont]
-  }
-}
-```
-
-The debugging information is annotated as comments to the code in brackets:
-
-```scala
-val x = f(3) // [break] [next: line=5]
-val y = 5
-```
-
-1. A JDB command must be wrapped in brackets, like `[step]`. All JDB commands can be used.
-2. To check output of JDB for a command, use `[cmd: expect]`.
-3. If `expect` is wrapped in double quotes, regex is supported.
-4. Break commands are collected and set globally.
-5. Other commands will be send to jdb in the order they appear in the source file
-
-Note that JDB uses line number starts from 1.
-
-### 2. Generate Expect File
-
-Now we can run the following command to generate an expect file:
-
-```shell
-compiler/test/debug/Gen tests/debug/while.scala > robot
-```
-
-### 3. Run the Test
-
-First, compile the file `tests/debug/while.scala`:
-
-```shell
-$ scalac tests/debug/while.scala
-```
-
-Second, run the compiled class with debugging enabled:
-
-```shell
-$ scala -d Test
-```
-
-Finally, run the expect script:
-
-```shell
-expect robot
-```
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