dt-bindings: mtd: Remove useless file about partitions

There is already a real partitions.yaml file, so assuming everybody
knows hot to read yaml schema now, this text file is no longer needed,
so drop it.

Depending on the situation, the lines referring to this file are either
dropped or edited to point to mtd.yaml which includes partition{,s}.yaml.

Signed-off-by: Miquel Raynal <[e-mail]>
Reviewed-by: Rob Herring <[e-mail]>
Link: https://lore.kernel.org/linux-mtd/[e-mail]

Documentation/devicetree/bindings/mtd/atmel-nand.txt

···
 - atmel,rb: an integer identifying the native Ready/Busy pin. Only meaningful
 	    on sama5 SoCs.
 
-All generic properties described in
-Documentation/devicetree/bindings/mtd/{common,nand}.txt also apply to the NAND
-device node, and NAND partitions should be defined under the NAND node as
-described in Documentation/devicetree/bindings/mtd/partition.txt.
+All generic properties are described in the generic yaml files under
+Documentation/devicetree/bindings/mtd/.
 
 * ECC engine (PMECC) bindings:
 

Documentation/devicetree/bindings/mtd/ingenic,nand.yaml

···
     type: object
     description:
       Node containing description of fixed partitions.
-      See Documentation/devicetree/bindings/mtd/partition.txt
 
 patternProperties:
   "^nand@[a-f0-9]$":

Documentation/devicetree/bindings/mtd/lpc32xx-mlc.txt

···
 - nxp,wr_low: WR_LOW
 
 Optional subnodes:
-- Partitions, see Documentation/devicetree/bindings/mtd/partition.txt
+- Partitions, see Documentation/devicetree/bindings/mtd/mtd.yaml
 
 Example:
 

Documentation/devicetree/bindings/mtd/lpc32xx-slc.txt

···
 - nxp,rsetup: Read setup time (R_SETUP)
 
 Optional subnodes:
-- Partitions, see Documentation/devicetree/bindings/mtd/partition.txt
+- Partitions, see Documentation/devicetree/bindings/mtd/mtd.yaml
 
 Example:
 

Documentation/devicetree/bindings/mtd/mtk-nand.txt

···
 	};
 
 NAND chip optional subnodes:
-- Partitions, see Documentation/devicetree/bindings/mtd/partition.txt
+- Partitions, see Documentation/devicetree/bindings/mtd/mtd.yaml
 
 Example:
 	nand@0 {

Documentation/devicetree/bindings/mtd/partition.txt

···
-Flash partitions in device tree
-===============================
-
-Flash devices can be partitioned into one or more functional ranges (e.g. "boot
-code", "nvram", "kernel").
-
-Different devices may be partitioned in a different ways. Some may use a fixed
-flash layout set at production time. Some may use on-flash table that describes
-the geometry and naming/purpose of each functional region. It is also possible
-to see these methods mixed.
-
-To assist system software in locating partitions, we allow describing which
-method is used for a given flash device. To describe the method there should be
-a subnode of the flash device that is named 'partitions'. It must have a
-'compatible' property, which is used to identify the method to use.
-
-When a single partition is represented with a DT node (it depends on a used
-format) it may also be described using above rules ('compatible' and optionally
-some extra properties / subnodes). It allows describing more complex,
-hierarchical (multi-level) layouts and should be used if there is some
-significant relation between partitions or some partition internally uses
-another partitioning method.
-
-Available bindings are listed in the "partitions" subdirectory.
-
-
-Deprecated: partitions defined in flash node
-============================================
-
-For backwards compatibility partitions as direct subnodes of the flash device are
-supported. This use is discouraged.
-NOTE: also for backwards compatibility, direct subnodes that have a compatible
-string are not considered partitions, as they may be used for other bindings.

drivers/mtd/parsers/Kconfig

···
 	  This provides a open firmware device tree partition parser
 	  which derives the partition map from the children of the
 	  flash memory node, as described in
-	  Documentation/devicetree/bindings/mtd/partition.txt.
+	  Documentation/devicetree/bindings/mtd/mtd.yaml.
 
 config MTD_OF_PARTS_BCM4908
 	bool "BCM4908 partitioning support"