Fix code search input for different views (#30678)

Now only show the "code search" on the repo home page, because it only
does global search.
So do not show it when viewing file or directory to avoid misleading
users (it doesn't search in a directory)

(cherry picked from commit 993736d838c36e26951b6cfea9c6a549958addd1)

routers/web/repo/commit.go

@@ -212,8 +212,6 @@ func SearchCommits(ctx *context.Context) {
 
 // FileHistory show a file's reversions
 func FileHistory(ctx *context.Context) {
-	ctx.Data["IsRepoToolbarCommits"] = true
-
 	fileName := ctx.Repo.TreePath
 	if len(fileName) == 0 {
 		Commits(ctx)

routers/web/repo/compare.go

@@ -800,7 +800,6 @@ func CompareDiff(ctx *context.Context) {
 	}
 	ctx.Data["Title"] = "Comparing " + base.ShortSha(beforeCommitID) + separator + base.ShortSha(afterCommitID)
 
-	ctx.Data["IsRepoToolbarCommits"] = true
 	ctx.Data["IsDiffCompare"] = true
 	_, templateErrs := setTemplateIfExists(ctx, pullRequestTemplateKey, pullRequestTemplateCandidates)
 

routers/web/repo/pull.go

@@ -1436,7 +1436,6 @@ func CompareAndPullRequestPost(ctx *context.Context) {
 	ctx.Data["Title"] = ctx.Tr("repo.pulls.compare_changes")
 	ctx.Data["PageIsComparePull"] = true
 	ctx.Data["IsDiffCompare"] = true
-	ctx.Data["IsRepoToolbarCommits"] = true
 	ctx.Data["PullRequestWorkInProgressPrefixes"] = setting.Repository.PullRequest.WorkInProgressPrefixes
 	ctx.Data["IsAttachmentEnabled"] = setting.Attachment.Enabled
 	upload.AddUploadContext(ctx, "comment")