Do not check if a custom SVD file exists

platformio/builder/tools/pioide.py

@@ -109,7 +109,7 @@ def _dump_defines(env):
 
 def _get_svd_path(env):
     svd_path = env.subst("$DEBUG_SVD_PATH")
-    if svd_path and isfile(svd_path):
+    if svd_path:
         return abspath(svd_path)
 
     if "BOARD" not in env: