Remove yaml skips older than 7.0 (#40183)

These are now obsolete in 8.0, and make adding new skips complicated.
Also found some very old skips (5.4!)

Author: polyfractal

rest-api-spec/src/main/resources/rest-api-spec/test/bulk/10_basic.yml

@@ -1,9 +1,7 @@
 ---
 "Array of objects":
 
-  - skip:
-      version: " - 6.99.99"
-      reason: types are required in requests before 7.0.0
+
 
   - do:
       bulk:
@@ -29,9 +27,7 @@
 ---
 "Empty _id":
 
-  - skip:
-      version: " - 6.99.99"
-      reason: types are required in requests before 7.0.0
+
 
   - do:
       bulk:
@@ -65,9 +61,7 @@
 "empty action":
 
   - skip:
-      version: " - 6.99.99"
       features: headers
-      reason: types are required in requests before 7.0.0
 
   - do:
       catch: /Malformed action\/metadata line \[3\], expected FIELD_NAME but found \[END_OBJECT\]/

rest-api-spec/src/main/resources/rest-api-spec/test/bulk/20_list_of_strings.yml

@@ -1,9 +1,7 @@
 ---
 "List of strings":
 
-  - skip:
-      version: " - 6.99.99"
-      reason: types are required in requests before 7.0.0
+
   - do:
       bulk:
         refresh: true

rest-api-spec/src/main/resources/rest-api-spec/test/bulk/30_big_string.yml

@@ -1,9 +1,7 @@
 ---
 "One big string":
 
-  - skip:
-      version: " - 6.99.99"
-      reason: types are required in requests before 7.0.0
+
   - do:
       bulk:
         refresh: true

rest-api-spec/src/main/resources/rest-api-spec/test/bulk/40_source.yml

@@ -1,9 +1,7 @@
 ---
 "Source filtering":
 
-  - skip:
-      version: " - 6.99.99"
-      reason: types are required in requests before 7.0.0
+
   - do:
       index:
         refresh: true

rest-api-spec/src/main/resources/rest-api-spec/test/bulk/50_refresh.yml

@@ -1,9 +1,7 @@
 ---
 "refresh=true immediately makes changes are visible in search":
 
-  - skip:
-      version: " - 6.99.99"
-      reason: types are required in requests before 7.0.0
+
   - do:
       bulk:
         refresh: true
@@ -21,9 +19,7 @@
 ---
 "refresh=empty string immediately makes changes are visible in search":
 
-  - skip:
-      version: " - 6.99.99"
-      reason: types are required in requests before 7.0.0
+
   - do:
       bulk:
         refresh: ""
@@ -42,9 +38,7 @@
 ---
 "refresh=wait_for waits until changes are visible in search":
 
-  - skip:
-      version: " - 6.99.99"
-      reason: types are required in requests before 7.0.0
+
   - do:
       bulk:
         refresh: wait_for

rest-api-spec/src/main/resources/rest-api-spec/test/bulk/70_mix_typeless_typeful.yml

@@ -1,10 +1,6 @@
 ---
 "bulk without types on an index that has types":
 
- - skip:
-      version: " - 6.99.99"
-      reason: Typeless APIs were introduced in 7.0.0
-
  - do:
       indices.create: # not using include_type_name: false on purpose
           include_type_name: true

rest-api-spec/src/main/resources/rest-api-spec/test/bulk/81_cas_with_types.yml

@@ -1,10 +1,6 @@
 ---
 "Compare And Swap Sequence Numbers":
 
- - skip:
-      version: " - 6.6.99"
-      reason:  cas operations with sequence numbers was added in 6.7
-
  - do:
       index:
           index:  test_1

rest-api-spec/src/main/resources/rest-api-spec/test/cat.thread_pool/10_basic.yml

@@ -1,8 +1,5 @@
 ---
 "Test cat thread_pool output":
-  - skip:
-        version: " - 6.99.99"
-        reason: this API was changed in a backwards-incompatible fashion in 7.0.0 so we need to skip in a mixed cluster
 
   - do:
       cat.thread_pool: {}

rest-api-spec/src/main/resources/rest-api-spec/test/cluster.health/10_basic.yml

@@ -94,9 +94,6 @@
 
 ---
 "cluster health basic test, one index with wait for no initializing shards":
-  - skip:
-      version: " - 6.1.99"
-      reason: "wait_for_no_initializing_shards is introduced in 6.2.0"
 
   - do:
       indices.create:

rest-api-spec/src/main/resources/rest-api-spec/test/cluster.state/10_basic.yml

@@ -7,9 +7,6 @@
 
 ---
 "get cluster state returns cluster_uuid at the top level":
-  - skip:
-      version:  " - 6.3.99"
-      reason:   "cluster state including cluster_uuid at the top level is new in v6.4.0 and higher"
 
   - do:
       cluster.state: