Document only user-facing hip APIs used in examples/tests

Co-authored-by: mawad-amd <[email protected]>

Author: Copilot

docs/reference/api-hip-module.md

@@ -2,46 +2,17 @@
 
 Low-level HIP runtime integration for AMD GPU device management and memory operations.
 
-This module provides public APIs for device management, device attribute queries, and IPC memory operations.
-
-## Device Management
-
-### count_devices
-```{eval-rst}
-.. autofunction:: iris.hip.count_devices
-```
-
-### set_device
-```{eval-rst}
-.. autofunction:: iris.hip.set_device
-```
+This module provides public APIs for querying device attributes.
 
 ## Device Attributes
 
-### get_cu_count
-```{eval-rst}
-.. autofunction:: iris.hip.get_cu_count
-```
-
-### get_num_xcc
-```{eval-rst}
-.. autofunction:: iris.hip.get_num_xcc
-```
-
 ### get_wall_clock_rate
 ```{eval-rst}
 .. autofunction:: iris.hip.get_wall_clock_rate
 ```
 
-## IPC Memory Operations
-
-### get_ipc_handle
-```{eval-rst}
-.. autofunction:: iris.hip.get_ipc_handle
-```
-
-### open_ipc_handle
+### get_num_xcc
 ```{eval-rst}
-.. autofunction:: iris.hip.open_ipc_handle
+.. autofunction:: iris.hip.get_num_xcc
 ```