Cleanup: redundant 'break', minor edits

source/blender/blenkernel/intern/data_transfer.c

@@ -357,7 +357,6 @@ static MeshRemapIslandsCalc data_transfer_get_loop_islands_generator(const int c
 	switch (cddata_type) {
 		case CD_FAKE_UV:
 			return BKE_mesh_calc_islands_loop_poly_uv;
-			break;
 		default:
 			break;
 	}

source/blender/blenkernel/intern/unit.c

@@ -512,10 +512,8 @@ static bool ch_is_op(char op)
 		case '=':
 		case '%':
 			return true;
-			break;
 		default:
 			return false;
-			break;
 	}
 }
 

source/blender/editors/render/render_opengl.c

@@ -302,7 +302,7 @@ static void screen_opengl_render_doit(OGLRender *oglrender, RenderResult *rr)
 		if (gpd) {
 			int i;
 			unsigned char *gp_rect;
-			unsigned char *rect = (unsigned char*)RE_RenderViewGetById(rr, oglrender->view_id)->rect32;
+			unsigned char *rect = (unsigned char *)RE_RenderViewGetById(rr, oglrender->view_id)->rect32;
 
 			GPU_offscreen_bind(oglrender->ofs, true);
 

source/blender/editors/sculpt_paint/paint_image.c

@@ -564,7 +564,6 @@ BlurKernel *paint_new_blur_kernel(Brush *br, bool proj)
 			MEM_freeN(kernel->wdata);
 			MEM_freeN(kernel);
 			return NULL;
-			break;
 	}
 
 	return kernel;

source/blender/imbuf/intern/png.c

@@ -600,7 +600,6 @@ ImBuf *imb_loadpng(const unsigned char *mem, size_t size, int flags, char colors
 		default:
 			printf("PNG format not supported\n");
 			longjmp(png_jmpbuf(png_ptr), 1);
-			break;
 	}
 	
 	ibuf = IMB_allocImBuf(width, height, 8 * bytesperpixel, 0);

source/blender/render/intern/source/pipeline.c

@@ -3963,13 +3963,10 @@ bool RE_layers_have_name(struct RenderResult *rr)
 	switch (BLI_listbase_count_ex(&rr->layers, 2)) {
 		case 0:
 			return false;
-			break;
 		case 1:
 			return (((RenderLayer *)rr->layers.first)->name[0] != '\0');
-			break;
 		default:
 			return true;
-			break;
 	}
 	return false;
 }