fix: fix linting errors in c files

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: na
  - task: lint_package_json
    status: na
  - task: lint_repl_help
    status: na
  - task: lint_javascript_src
    status: na
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: na
  - task: lint_javascript_tests
    status: na
  - task: lint_javascript_benchmarks
    status: na
  - task: lint_python
    status: na
  - task: lint_r
    status: na
  - task: lint_c_src
    status: passed
  - task: lint_c_examples
    status: na
  - task: lint_c_benchmarks
    status: passed
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
    status: na
  - task: lint_typescript_declarations
    status: na
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---

Author: dhruvilmehta

lib/node_modules/@stdlib/math/base/special/rempio2f/benchmark/c/native/benchmark.c

@@ -93,7 +93,6 @@ static double benchmark( void ) {
 	float x[ 100 ];
 	double elapsed;
 	float rem;
-	int32_t n;
 	double t;
 	int i;
 
@@ -103,7 +102,7 @@ static double benchmark( void ) {
 
 	t = tic();
 	for ( i = 0; i < ITERATIONS; i++ ) {
-		n = stdlib_base_rempio2f( x[ i % 100 ], &rem );
+		stdlib_base_rempio2f( x[ i % 100 ], &rem );
 		if ( isnanf( rem ) ) {
 			printf( "should not return NaN\n" );
 			break;

lib/node_modules/@stdlib/math/base/special/rempio2f/src/main.c

@@ -172,7 +172,7 @@ static int32_t rempio2f_kernel(const float* x, float* rem, int32_t e0, int32_t n
 	}
 
 	jz = jk;
-recompute:
+
 	// Distill `Q[]` into `IQ[]` in reverse order:
 	z = Q[jz];
 	for (i = 0, j = jz; j > 0; i++, j--) {