Revert "Refactor to reduce "swap" instruction of pattern matching"

This reverts commit 3a4be429b50062122d1616256de38649464d3146.

To fix following warning:

```
compiling ../compile.c
../compile.c:6336:20: warning: variable 'line' is uninitialized when used here [-Wuninitialized]
    ADD_INSN(head, line, putnil); /* allocate stack for cached #deconstruct value */
                   ^~~~
../compile.c:220:57: note: expanded from macro 'ADD_INSN'
  ADD_ELEM((seq), (LINK_ELEMENT *) new_insn_body(iseq, (line), BIN(insn), 0))
                                                        ^~~~
../compile.c:6327:13: note: initialize the variable 'line' to silence this warning
    int line;
            ^
             = 0
1 warning generated.
```

0 files changed, 0 insertions, 0 deletions