fix(ios): Revert changes from 4.2.0

Author: matt-oakes

src/commands/ios_simulator_start.yml

@@ -1,4 +1,4 @@
-description: Creates and starts an iOS simulator with the given name.
+description: Starts an iOS simulator with the given name.
 
 parameters:
   device:
@@ -7,12 +7,6 @@ parameters:
     default: "iPhone X"
 
 steps:
-  - run:
-      name: Remove all simulators to avoid conflicts with the one we're going to use
-      command: xcrun simctl list | awk -F "[()]" '{ for (i=2; i<NF; i+=2) print $i }' | grep '^[-A-Z0–9]*$' | xargs -I uuid xcrun simctl delete uuid
-  - run:
-      name: Create the device simulator we need
-      command: xcrun simctl create "<<parameters.device>>" "<<parameters.device>>"
   - run:
       name: Start iOS simulator (background)
       background: true