remove all references to kube_master* variables

docs/operations/cgroups.md

@@ -30,11 +30,6 @@ kube_memory_reserved: 256Mi
 kube_cpu_reserved: 100m
 # kube_ephemeral_storage_reserved: 2Gi
 # kube_pid_reserved: "1000"
-# Reservation for master hosts
-kube_master_memory_reserved: 512Mi
-kube_master_cpu_reserved: 200m
-# kube_master_ephemeral_storage_reserved: 2Gi
-# kube_master_pid_reserved: "1000"
 
 # Set to true to reserve resources for system daemons
 system_reserved: true
@@ -44,11 +39,6 @@ system_memory_reserved: 512Mi
 system_cpu_reserved: 500m
 # system_ephemeral_storage_reserved: 2Gi
 # system_pid_reserved: "1000"
-# Reservation for master hosts
-system_master_memory_reserved: 256Mi
-system_master_cpu_reserved: 250m
-# system_master_ephemeral_storage_reserved: 2Gi
-# system_master_pid_reserved: "1000"
 ```
 
 After the setup, the cgroups hierarchy is as follows:
@@ -72,7 +62,7 @@ After the setup, the cgroups hierarchy is as follows:
 
 ## Automatic Resource Reservation Calculation
 
-While manually specifying resource reservations for kube and system daemons  works, Kubespray offers a more convenient approach. You can set the `kube_enable_auto_reserved_resources` flag to `true`. This instructs Kubespray to automatically calculate appropriate resource reservations for `kube_[master]_cpu_reserved` and `kube_[master]_memory_reserved` based on your host size. This eliminates the need for manual configuration, simplifying the process.
+While manually specifying resource reservations for kube and system daemons  works, Kubespray offers a more convenient approach. You can set the `kube_enable_auto_reserved_resources` flag to `true`. This instructs Kubespray to automatically calculate appropriate resource reservations for `kube_cpu_reserved` and `kube_memory_reserved` based on your host size. This eliminates the need for manual configuration, simplifying the process.
 
 When `kube_enable_auto_reserved_resources` is set to `true`, Kubespray calculates resource reservations as follows: