Remove hard coded path to llvm-lit, it is installed by pip

suite/auto-sync/src/autosync/MCUpdater.py

@@ -212,11 +212,6 @@ def check_prerequisites(self, paths):
                 raise ValueError(
                     f"'{path}' does not exits or is not a directory. Cannot generate tests from there."
                 )
-        llvm_lit = get_path("{LLVM_LIT_BIN}")
-        if not llvm_lit.exists():
-            raise ValueError(
-                f"Could not find '{llvm_lit}'. Check {{LLVM_LIT_BIN}} in path_vars.json."
-            )
         llvm_lit_cfg = get_path("{LLVM_LIT_TEST_DIR}")
         if not llvm_lit_cfg.exists():
             raise ValueError(
@@ -271,10 +266,9 @@ def run_llvm_lit(self, paths: list[Path]) -> list[LLVM_MC_Command]:
         Calls llvm-lit with the given paths to the tests.
         It parses the llvm-lit commands to LLVM_MC_Commands.
         """
-        llvm_lit = str(get_path("{LLVM_LIT_BIN}").absolute())
         lit_cfg_dir = get_path("{LLVM_LIT_TEST_DIR}")
         llvm_lit_cfg = str(lit_cfg_dir.absolute())
-        args = [llvm_lit, "-v", "-a", llvm_lit_cfg]
+        args = ["lit", "-v", "-a", llvm_lit_cfg]
         for i, p in enumerate(paths):
             slink = lit_cfg_dir.joinpath(f"{self.test_dir_link_prefix}{i}")
             self.symbolic_links.append(slink)

suite/auto-sync/src/autosync/path_vars.json

@@ -4,7 +4,6 @@
     "{LLVM_TARGET_DIR}": "{LLVM_ROOT}/llvm/lib/Target/",
     "{LLVM_MC_TEST_DIR}": "{LLVM_ROOT}/llvm/test/MC/",
     "{LLVM_TBLGEN_BIN}": "{LLVM_ROOT}/build/bin/llvm-tblgen",
-    "{LLVM_LIT_BIN}": "{CS_ROOT}/.venv/bin/lit",
     "{LLVM_LIT_TEST_DIR}": "{AUTO_SYNC_SRC}/lit_config/",
     "{LLVM_INCLUDE_DIR}": "{LLVM_ROOT}/llvm/include/",
     "{VENDOR_DIR}": "{AUTO_SYNC_ROOT}/vendor/",