test: removed nil_logger from tests.

Tests always pass with it.

mustache/diagnostic_test.odin

@@ -3,6 +3,7 @@ package mustache
 
 import "core:encoding/json"
 import "core:fmt"
+import "core:log"
 import "core:os"
 import "core:path/filepath"
 import "core:strings"

mustache/mustache_test.odin

@@ -1,7 +1,6 @@
 #+test
 package mustache
 
-import "core:log"
 import "core:mem"
 import "core:strings"
 import "core:testing"
@@ -130,8 +129,6 @@ leak_repeated_render :: proc(t: ^testing.T) {
 // The depth warning must be non-fatal: rendering still succeeds.
 @(test)
 test_context_depth_warns :: proc(t: ^testing.T) {
-	context.logger = log.nil_logger()
-
 	AMT :: MAX_CONTEXT_DEPTH + 2
 
 	// Build AMT nested {x: {...}} levels; the innermost holds `leaf`.

mustache/spec_test.odin

@@ -3,7 +3,6 @@ package mustache
 
 import "core:encoding/json"
 import "core:fmt"
-import "core:log"
 import "core:os"
 import "core:path/filepath"
 import "core:testing"
@@ -55,10 +54,6 @@ run_one_test :: proc(
 	test: json.Object,
 	name, template_src, expected: string,
 ) -> bool {
-	// Spec tests deliberately exercise missing keys, missing partials, etc.
-	// Silence the warnings to keep test output readable.
-	context.logger = log.nil_logger()
-
 	partials := make_map(map[string]Template, context.temp_allocator)
 
 	if "partials" in test {