regmap: Remove unexistant file from Makefile

This is a leftover from qcom.

Change-Id: I1f387f4ceeb6305774f4f69e4006ec8c28a786d5

Author: kholk

drivers/base/regmap/Makefile

@@ -10,4 +10,3 @@ obj-$(CONFIG_REGMAP_SPI) += regmap-spi.o
 obj-$(CONFIG_REGMAP_SPMI) += regmap-spmi.o
 obj-$(CONFIG_REGMAP_MMIO) += regmap-mmio.o
 obj-$(CONFIG_REGMAP_IRQ) += regmap-irq.o
-obj-$(CONFIG_REGMAP_SWR) += regmap-swr.o