doc/doxygen/: remove un-needed file

doc/doxygen/chapters/code/vector_scal_cuda.texi

@@ -1,26 +0,0 @@
-#include <starpu.h>
-
-static __global__ void vector_mult_cuda(unsigned n, float *val,
-                                        float factor)
-{
-        unsigned i =  blockIdx.x*blockDim.x + threadIdx.x;
-        if (i < n)
-               val[i] *= factor;
-}
-
-extern "C" void scal_cuda_func(void *buffers[], void *_args)
-{
-        float *factor = (float *)_args;
-
-        /* length of the vector */
-        unsigned n = STARPU_VECTOR_GET_NX(buffers[0]);
-        /* local copy of the vector pointer */
-        float *val = (float *)STARPU_VECTOR_GET_PTR(buffers[0]);
-        unsigned threads_per_block = 64;
-        unsigned nblocks = (n + threads_per_block-1) / threads_per_block;
-
-        vector_mult_cuda<<<nblocks,threads_per_block, 0, starpu_cuda_get_local_stream()>>>
-	                (n, val, *factor);
-
-        cudaStreamSynchronize(starpu_cuda_get_local_stream());
-}