[openmp] Remove extra ';' outside of function

Fixes:
```
[4038/11058] Building CXX object projects/openmp/libomptarget/src/CMakeFiles/omptarget.dir/OpenMP/InteropAPI.cpp.o
/home/aganea/llvm-project/openmp/libomptarget/src/OpenMP/InteropAPI.cpp:202:2: warning: extra ';' outside of a function is incompatible with C++98 [-Wc++98-compat-extra-semi]
};
 ^
1 warning generated.
```
GitOrigin-RevId: c5bbf40d9836409837696e4d60e94ed2ad3d6a32
diff --git a/libomptarget/src/OpenMP/InteropAPI.cpp b/libomptarget/src/OpenMP/InteropAPI.cpp
index c96ce2c..1a995cd 100644
--- a/libomptarget/src/OpenMP/InteropAPI.cpp
+++ b/libomptarget/src/OpenMP/InteropAPI.cpp
@@ -199,7 +199,7 @@
   char *UsrMsg = reinterpret_cast<char *>(malloc(ErrMsg.size() + 1));
   strcpy(UsrMsg, ErrMsg.c_str());
   return UsrMsg;
-};
+}
 
 extern "C" {