Remove matrix_init_quantum/matrix_scan_quantum (#19806)

tests/test_common/matrix.c

@@ -22,11 +22,11 @@ static matrix_row_t matrix[MATRIX_ROWS] = {};
 
 void matrix_init(void) {
     clear_all_keys();
-    matrix_init_quantum();
+    matrix_init_kb();
 }
 
 uint8_t matrix_scan(void) {
-    matrix_scan_quantum();
+    matrix_scan_kb();
     return 1;
 }