InputText: Simplify read-only code path.
InputText: Simplify read-only code path.

cmaughan/imgui,dougbinks/imgui,bkaradzic/imgui,ggtucker/imgui,nProtect/imgui,ggtucker/imgui,burningreggae/imgui,nProtect/imgui,aimotive/imgui-glfw,cmaughan/imgui,cmaughan/imgui,ocornut/imgui,Flix01/imgui,ocornut/imgui,Flix01/imgui,ocornut/imgui,dougbinks/imgui,bkaradzic/imgui,bkaradzic/imgui,ggtucker/imgui,aimotive/imgui-glfw,nProtect/imgui,burningreggae/imgui,Flix01/imgui,cmaughan/imgui