Remove WhenExpressions names

Initially, we'd considered giving WhenExpressions names. After further
discussion, we decided it's unnecessary because we don't use them across
Tasks and what the WhenExpression is evaluating should be straighforward
from the input, operator and values. So removing the WhenExpression names
mistakenly left in the TEP so that it doesn't mislead users who read the
TEP.

teps/0007-conditions-beta.md

@@ -268,8 +268,7 @@ spec:
           workspace: source-repo
     - name: echo-file-exists
       when:
-        - name: check-file-exists
-          input: '$(tasks.file-exists.results.exists)'
+        - input: '$(tasks.file-exists.results.exists)'
           operator: In
           values: ['true']
       taskRef:
@@ -279,17 +278,14 @@ spec:
 Other examples of `Guards` using `When Expressions` are:
 
 ```yaml
-name: branch-is-main
 input: $(params.branch)
 operator: In
 values: [‘main’]
 ---
-name: branch-not-main
 input: $(params.branch)
 operator: NotIn
 values: [‘main’]
 ---
-name: always-false
 input: ‘false’
 operator: In
 values: [‘’]
@@ -340,8 +336,7 @@ spec:
           workspace: source-repo
     - name: echo-file-does-not-exist # skipped
       when:
-        - name: check-file-exists
-          input: '$(tasks.file-exists.results.exists)'
+        - input: '$(tasks.file-exists.results.exists)'
           operator: In
           values: ['false']
       continueAfterSkip: 'true'
@@ -544,12 +539,10 @@ spec:
         - name: check-git-files-changed
     - name: ci-job
       when:
-      - name: check-git-files-changed
-        input: "$(tasks.check-git-files-changed.results.changed)"
+      - input: "$(tasks.check-git-files-changed.results.changed)"
         key: In
         values: ["true"]
-      - name: check-name-matches
-        input: "$(params.githubCommand)"
+      - input: "$(params.githubCommand)"
         key: In
         values: ["", "/test $(params.checkName)"]
       taskRef: