Fix issue with IRGen

During debugging session, with the use of pods installed via Cocoapods-binary, the console in Xcode displays error messages while executing following expression:
`po self`

The error looks the following one:
```
Printing description of self:
expression produced error: error: virtual filesystem overlay file '/path/to/project/Pods/build/Pods.build/Release-iphoneos/Charts.build/all-product-headers.yaml' not found

error: couldn't IRGen expression. Please check the above error messages for possible root causes.
```

The issue is not related to Charts pod, but to every pod used.

To fix the issue, I just removed the line that delete the build folder generated during the precompiling of pods. THis folder contains for each pod, the `all-product-headers.yaml` expected by Xcode.

Author: brendan-guegan-orange

lib/cocoapods-binary/rome/build_framework.rb

@@ -188,7 +188,7 @@ def self.build(sandbox_root_path, target, output_path, bitcode_enabled = false,
 
     def self.remove_build_dir(sandbox_root)
       path = build_dir(sandbox_root)
-      path.rmtree if path.exist?
+      # path.rmtree if path.exist?
     end
 
     private