message: test(c-api) Clean up the `tests/Makefile`.
  1. Use single tabs rather than three, it fits in a small terminal
  window,
  2. `CAPI_WASMER_TESTS` has been removed in
  but partially. This
  patch finishes the work.
  3. The `test-%: %.o` rule is a remainder of some older code, it's no
  longer needed.
diff: @@ -27,19 +27,11 @@ CAPI_BASE_TESTS_NOT_WORKING = \
  wasm-c-api/example/finalize wasm-c-api/example/hostref wasm-c-api/example/threads \
  wasm-c-api/example/table
  -ALL = $(CAPI_BASE_TESTS) $(CAPI_WASMER_TESTS)
  -
  -test-%: %.o
  +ALL = $(CAPI_BASE_TESTS)
  .PHONY: all
  all: $(ALL)
  -.PHONY: test-capi-wasmer
  -.SILENT: test-capi-wasmer
  -test-capi-wasmer: $(CAPI_WASMER_TESTS)
  - set -o errexit; \
  - $(foreach example,$?,echo Running \"$(example)\" example; cd $(shell dirname $(realpath $(example))) && ./$(shell basename $(example)); echo;)
  -
  .PHONY: test-capi-base
  .SILENT: test-capi-base
  test-capi-base: $(CAPI_BASE_TESTS)
  @@ -48,7 +40,7 @@ test-capi-base: $(CAPI_BASE_TESTS)
  .PHONY: test-capi-base
  .SILENT: test-capi-base
  -test-capi: test-capi-base test-capi-wasmer
  +test-capi: test-capi-base
  test: test-capi
  