docs: remove network topology config (#168)

Signed-off-by: Gaius <gaius.qi@gmail.com>

docs/development-guide/configure-development-nvironment.md

@@ -110,7 +110,6 @@ database:
     password: your_redis_password
     brokerDB: 1
     backendDB: 2
-    networkTopologyDB: 3
  manager:
   addr: 127.0.0.1:65003
   schedulerClusterID: 1

docs/getting-started/installation/binaries.md

@@ -297,7 +297,6 @@ database:
     password: your_redis_password
     brokerDB: 1
     backendDB: 2
-    networkTopologyDB: 3
  manager:
   addr: dragonfly-manager:65003
   schedulerClusterID: 1

docs/reference/configuration/scheduler.md

@@ -98,8 +98,6 @@ database:
     brokerDB: 1
     # Redis backend DB.
     backendDB: 2
-    # Network topology DB.
-    networkTopologyDB: 3
 
 # Resource configuration.
 resource:
@@ -159,18 +157,6 @@ job:
   # Number of workers in local queue.
   localWorkerNum: 1000
 
-# Network topology to collect configuration.
-networkTopology:
-  # enable network topology service, including probe, network topology collection.
-  enable: true
-  # collectInterval is the interval of collecting network topology.
-  collectInterval: 2h
-  probe:
-    # queueLength is the length of probe queue.
-    queueLength: 5
-    # count is the number of probing hosts.
-    count: 10
-
 # Store task download information.
 storage:
   # maxSize sets the maximum size in megabytes of storage file.