Update compiler.cc

Author: jonahwilliams

impeller/compiler/compiler.cc

@@ -37,9 +37,7 @@ static CompilerBackend CreateMSLCompiler(const spirv_cross::ParsedIR& ir,
   sl_compiler->set_msl_options(sl_options);
 
   // Set metal resource mappings to be consistent with location based mapping
-  // used on other backends when creating fragment shaders. This relies on the
-  // fact that the order of uniforms in the IR mirrors the declared order in the
-  // shader source.
+  // used on other backends when creating fragment shaders.
   if (source_options.remap_samplers) {
     std::vector<uint32_t> sampler_offsets;
     ir.for_each_typed_id<spirv_cross::SPIRVariable>(