Revert "Add more yaml tests for get alias API (#29513)"

This reverts commit ad43231.

Author: ywelsch

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

@@ -20,52 +20,14 @@ setup:
 ---
 "Get all aliases via /_alias":
 
-  - do:
-      indices.create:
-        index: test_index_3
-
   - do:
       indices.get_alias: {}
 
   - match: {test_index.aliases.test_alias: {}}
   - match: {test_index.aliases.test_blias: {}}
   - match: {test_index_2.aliases.test_alias: {}}
   - match: {test_index_2.aliases.test_blias: {}}
-  - match: {test_index_3.aliases: {}}
-
----
-"Get aliases via /_alias/_all":
-
-  - do:
-      indices.create:
-        index: test_index_3
-
-  - do:
-      indices.get_alias:
-        name: _all
-
-  - match: {test_index.aliases.test_alias: {}}
-  - match: {test_index.aliases.test_blias: {}}
-  - match: {test_index_2.aliases.test_alias: {}}
-  - match: {test_index_2.aliases.test_blias: {}}
-  - is_false: test_index_3
-
----
-"Get aliases via /_alias/*":
 
-  - do:
-      indices.create:
-        index: test_index_3
-
-  - do:
-      indices.get_alias:
-        name: _all
-
-  - match: {test_index.aliases.test_alias: {}}
-  - match: {test_index.aliases.test_blias: {}}
-  - match: {test_index_2.aliases.test_alias: {}}
-  - match: {test_index_2.aliases.test_blias: {}}
-  - is_false: test_index_3
 
 ---
 "Get all aliases via /{index}/_alias/":