refactor: refactor unnecessary else / elif when if block has a raise statement

`raise` causes control flow to be disrupted, as it will exit the block.
It is recommended to check other conditions using another `if` statement, and get rid of `else` statements as they are unnecessary.

Author: deepsource-autofix[bot]

codeinsight_sdk/client.py

@@ -90,8 +90,7 @@ def inventories(self):
     def experimental(self) -> ExperimentalHandler:
         if self.experimental_enabled == False:
             raise CodeInsightError("Experimental API is not enabled for this instance")
-        else:
-            return ExperimentalHandler(self)
+        return ExperimentalHandler(self)
 
     # Coming soon...?