[Kaizen] Remove obsolete gac test configs

src/main/resources/conf/base.conf

@@ -329,8 +329,6 @@ mantis {
 
     test {include required("chains/test-chain.conf")}
 
-    testnet-internal-gac {include required("chains/testnet-internal-gac-chain.conf")}
-
     testnet-internal-nomad {include required("chains/testnet-internal-nomad-chain.conf")}
   }
 
@@ -591,7 +589,7 @@ mantis {
       #           otherwise mantis VM will be run in the same process, but acting as an external VM (listening at `host` and `port`)
       # - none: doesn't run anything, expect the VM to be started by other means
       vm-type = "mantis"
- 
+
       # path to the executable - optional depending on the `vm-type` setting
       executable-path = "./bin/mantis-vm"
 
@@ -624,11 +622,11 @@ mantis {
 
 akka {
   loggers = ["akka.event.slf4j.Slf4jLogger"]
-  
+
   # defaults to INFO to prevent any performance impact
   loglevel = "INFO"
   loglevel = ${?AKKA_LOGLEVEL}
-  
+
   logging-filter = "akka.event.slf4j.Slf4jLoggingFilter"
   logger-startup-timeout = 30s
   log-dead-letters-during-shutdown = off