_content/blog: remove duplicate title in coverage blog post

Change-Id: I7a8280a2b391827abe987dbedeec291f8d20ba73
Reviewed-on: https://go-review.googlesource.com/c/website/+/474755
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
diff --git a/_content/blog/integration-test-coverage.md b/_content/blog/integration-test-coverage.md
index 0b913eb..613582a 100644
--- a/_content/blog/integration-test-coverage.md
+++ b/_content/blog/integration-test-coverage.md
@@ -6,8 +6,6 @@
 summary:  Code coverage for integration tests, available in Go 1.20.
 ---
 
-# Code coverage for Go integration tests
-
 Code coverage tools help developers determine what fraction of a source code base is executed (covered) when a given test suite is executed.
 
 Go has for some time provided support ([introduced](https://go.dev/blog/cover) in the Go 1.2 release) to measure code coverage at the package level, using the **"-cover"** flag of the "go test" command.