Clear windows branch; preserve previous contents in win-old

kernels/k/dltss_pwin_enc1_layer.hip

@@ -1,16 +0,0 @@
-// CU mode: the waves of a window share one L0 cache (1-6% faster here; slower in the wide layers)
-// d4r-build-flags: -mcumode
-#define PWIN_F32ACC
-#ifdef D4R_K_ENC1_POS_MT
-#if !defined(__GFX12__) || !defined(D4R_K_FP16_BASELINE)
-#error "experimental enc1 token tiling requires gfx12 strict K baseline"
-#endif
-#if D4R_K_ENC1_POS_MT != 1 && D4R_K_ENC1_POS_MT != 2 && D4R_K_ENC1_POS_MT != 4
-#error "enc1 token tiles per wave must be 1, 2 or 4"
-#endif
-#include "pwin_pos.h"
-POS_ENCODER(dltss_pwin_enc1_layer, 2, 64, 64, 0, D4R_K_ENC1_POS_MT)
-#else
-#include "pwin_layer.h"
-PWIN_ENCODER_POS(dltss_pwin_enc1_layer, 2, 64, 64, true)
-#endif