feat(blockifier): replace TryFrom<&Path> for VC with ad-hoc function (#…

…973)

Signed-off-by: Dori Medini <dori@starkware.co>

crates/blockifier/src/versioned_constants.rs

@@ -262,12 +262,8 @@ impl VersionedConstants {
             ..Self::latest_constants().clone()
         }
     }
-}
-
-impl TryFrom<&Path> for VersionedConstants {
-    type Error = VersionedConstantsError;
 
-    fn try_from(path: &Path) -> Result<Self, Self::Error> {
+    pub fn from_path(path: &Path) -> Result<Self, VersionedConstantsError> {
         Ok(serde_json::from_reader(std::fs::File::open(path)?)?)
     }
 }