Cleanup kafka streams sample yaml files

kafka-streams-samples/kafka-streams-aggregate/src/main/resources/application.yml

@@ -1,7 +1,6 @@
 spring.application.name: kafka-streams-aggregate-sample
 spring.cloud.stream.bindings.input:
   destination: foobar
-  consumer:
 spring.cloud.stream.kafka.streams.binder:
   brokers: localhost #192.168.99.100
   configuration:

kafka-streams-samples/kafka-streams-branching/src/main/resources/application.yml

@@ -7,17 +7,13 @@ spring.cloud.stream.kafka.streams.binder.configuration:
   default.value.serde: org.apache.kafka.common.serialization.Serdes$StringSerde
 spring.cloud.stream.bindings.output1:
   destination: english-counts
-  producer:
 spring.cloud.stream.bindings.output2:
   destination: french-counts
-  producer:
 spring.cloud.stream.bindings.output3:
   destination: spanish-counts
-  producer:
 spring.cloud.stream.bindings.input:
   destination: words
   group: group1
-  consumer:
 spring.cloud.stream.kafka.streams.binder:
   brokers: localhost #192.168.99.100 #localhost
 spring.application.name: kafka-streams-branching-sample

kafka-streams-samples/kafka-streams-message-channel/src/main/resources/application.yml

@@ -7,10 +7,8 @@ spring.cloud.stream.bindings.singleOutput:
   destination: counts
 spring.cloud.stream.bindings.binding2:
   destination: words
-  consumer:
 spring.cloud.stream.bindings.binding1:
   destination: words
-  consumer:
 spring.cloud.stream.kafka.streams.binder:
   brokers: localhost #192.168.99.100
 spring.applicaiton.name: kafka-streams-message-channel-sample

kafka-streams-samples/kafka-streams-product-tracker/src/main/resources/application.yml

@@ -10,7 +10,6 @@ spring.cloud.stream.bindings.output:
   destination: product-counts
 spring.cloud.stream.bindings.input:
   destination: products
-  consumer:
 spring.cloud.stream.kafka.streams.binder:
   brokers: localhost #192.168.99.100
 spring.applicaiton.name: kafka-streams-product-tracker-sample