diff --git a/src/common.cpp b/src/common.cpp
index baee97a62..a1cc7c63c 100644
--- a/src/common.cpp
+++ b/src/common.cpp
@@ -303,16 +303,6 @@ static wcstring str2wcs_internal(const char *in, const size_t in_len) {
     wcstring result;
     result.reserve(in_len);
 
-    // In the unlikely event that MB_CUR_MAX is 1, then we are just going to append.
-    if (MB_CUR_MAX == 1) {
-        size_t in_pos = 0;
-        while (in_pos < in_len) {
-            result.push_back(static_cast<unsigned char>(in[in_pos]));
-            in_pos++;
-        }
-        return result;
-    }
-
     size_t in_pos = 0;
     mbstate_t state = {};
     while (in_pos < in_len) {