improvements to minimize diff during tutorials

scripts/tutorial-patches/RocketConfigs.scala.patch

@@ -1,13 +0,0 @@
-diff --git a/generators/chipyard/src/main/scala/config/RocketConfigs.scala b/generators/chipyard/src/main/scala/config/RocketConfigs.scala
-index 8e6e486..fc3a811 100644
---- a/generators/chipyard/src/main/scala/config/RocketConfigs.scala
-+++ b/generators/chipyard/src/main/scala/config/RocketConfigs.scala
-@@ -105,7 +105,7 @@ class GB1MemoryRocketConfig extends Config(
- 
- // DOC include start: Sha3Rocket
- class Sha3RocketConfig extends Config(
--  new sha3.WithSha3Accel ++                                // add SHA3 rocc accelerator
-+//  new sha3.WithSha3Accel ++                                // add SHA3 rocc accelerator
-   new freechips.rocketchip.subsystem.WithNBigCores(1) ++
-   new chipyard.config.AbstractConfig)
- // DOC include end: Sha3Rocket

scripts/tutorial-setup.sh

@@ -2,7 +2,8 @@
 
 set -e -x
 
-rm -rf generators/sha3
+git rm generators/chipyard/src/main/scala/config/RocketSha3Configs.scala
+git rm -rf generators/sha3
 
 for p in scripts/tutorial-patches/*.patch
 do