freedreno: free compiler when screen is destroyed

Drop ir3_compiler_destroy(), since it is only ralloc_free() and we
shouldn't really have an ir3 dependency in core.  If some future hw
has a new compiler, as long as all it's resources are ralloc()d then
things will all just work.

(In practice, I suppose you never really see this leak, but removing
it at least cleans up some noise in valgrind.)

Signed-off-by: Rob Clark <robdclark@gmail.com>

src/gallium/drivers/freedreno/freedreno_screen.c

@@ -144,6 +144,8 @@ fd_screen_destroy(struct pipe_screen *pscreen)
 
 	mtx_destroy(&screen->lock);
 
+	ralloc_free(screen->compiler);
+
 	free(screen);
 }
 

src/gallium/drivers/freedreno/ir3/ir3_compiler.c

@@ -38,8 +38,3 @@ struct ir3_compiler * ir3_compiler_create(struct fd_device *dev, uint32_t gpu_id
 	compiler->set = ir3_ra_alloc_reg_set(compiler);
 	return compiler;
 }
-
-void ir3_compiler_destroy(struct ir3_compiler *compiler)
-{
-	ralloc_free(compiler);
-}

src/gallium/drivers/freedreno/ir3/ir3_compiler.h

@@ -41,7 +41,6 @@ struct ir3_compiler {
 };
 
 struct ir3_compiler * ir3_compiler_create(struct fd_device *dev, uint32_t gpu_id);
-void ir3_compiler_destroy(struct ir3_compiler *compiler);
 
 int ir3_compile_shader_nir(struct ir3_compiler *compiler,
 		struct ir3_shader_variant *so);