updated rev5 mappings

frameworks/nist800-53-r5/input/nist800-53-r5-mappings.tsv

@@ -471,7 +471,6 @@ date delivered	mitigationID	techniqueID	controlID	description
 11/12/20	M1027	T1552(\.004)	CA-7	Continuous Monitoring	
 11/12/20	M1027	T1552(\.004)	SI-4	Information System Monitoring	
 11/12/20	M1027	T1552(\.004)	IA-(2|5)	"Identification and Authentication (Organizational Users), Authenticator Management"	
-10/29/20	M1027	T1555(\.001|\.002)?	AC-1	Access Control Policy and Procedures	
 10/29/20	M1027	T1555(\.001|\.002)?	CA-7	Continuous Monitoring	
 10/29/20	M1027	T1555(\.001|\.002)?	SI-4	Information System Monitoring	
 10/29/20	M1027	T1555(\.001|\.002)?	IA-5	Authenticator Management	

frameworks/nist800-53-r5/layers/README.md

@@ -4,7 +4,6 @@ The following [ATT&CK Navigator](https://github.com/mitre-attack/attack-navigato
 
 - nist800-53-r5 overview ( [download](https://raw.githubusercontent.com/center-for-threat-informed-defense/attack-control-framework-mappings/master/frameworks/nist800-53-r5/layers/nist800-53-r5-overview.json) | [view](https://mitre-attack.github.io/attack-navigator/#layerURL=https%3A%2F%2Fraw.githubusercontent.com%2Fcenter-for-threat-informed-defense%2Fattack-control-framework-mappings%2Fmaster%2Fframeworks%2Fnist800-53-r5%2Flayers%2Fnist800-53-r5-overview.json) )
     - AC overview ( [download](https://raw.githubusercontent.com/center-for-threat-informed-defense/attack-control-framework-mappings/master/frameworks/nist800-53-r5/layers/by_family/AC/AC-overview.json) | [view](https://mitre-attack.github.io/attack-navigator/#layerURL=https%3A%2F%2Fraw.githubusercontent.com%2Fcenter-for-threat-informed-defense%2Fattack-control-framework-mappings%2Fmaster%2Fframeworks%2Fnist800-53-r5%2Flayers%2Fby_family%2FAC%2FAC-overview.json) )
-        - AC-1 mappings ( [download](https://raw.githubusercontent.com/center-for-threat-informed-defense/attack-control-framework-mappings/master/frameworks/nist800-53-r5/layers/by_family/AC/AC-1.json) | [view](https://mitre-attack.github.io/attack-navigator/#layerURL=https%3A%2F%2Fraw.githubusercontent.com%2Fcenter-for-threat-informed-defense%2Fattack-control-framework-mappings%2Fmaster%2Fframeworks%2Fnist800-53-r5%2Flayers%2Fby_family%2FAC%2FAC-1.json) )
         - AC-2 mappings ( [download](https://raw.githubusercontent.com/center-for-threat-informed-defense/attack-control-framework-mappings/master/frameworks/nist800-53-r5/layers/by_family/AC/AC-2.json) | [view](https://mitre-attack.github.io/attack-navigator/#layerURL=https%3A%2F%2Fraw.githubusercontent.com%2Fcenter-for-threat-informed-defense%2Fattack-control-framework-mappings%2Fmaster%2Fframeworks%2Fnist800-53-r5%2Flayers%2Fby_family%2FAC%2FAC-2.json) )
         - AC-3 mappings ( [download](https://raw.githubusercontent.com/center-for-threat-informed-defense/attack-control-framework-mappings/master/frameworks/nist800-53-r5/layers/by_family/AC/AC-3.json) | [view](https://mitre-attack.github.io/attack-navigator/#layerURL=https%3A%2F%2Fraw.githubusercontent.com%2Fcenter-for-threat-informed-defense%2Fattack-control-framework-mappings%2Fmaster%2Fframeworks%2Fnist800-53-r5%2Flayers%2Fby_family%2FAC%2FAC-3.json) )
         - AC-4 mappings ( [download](https://raw.githubusercontent.com/center-for-threat-informed-defense/attack-control-framework-mappings/master/frameworks/nist800-53-r5/layers/by_family/AC/AC-4.json) | [view](https://mitre-attack.github.io/attack-navigator/#layerURL=https%3A%2F%2Fraw.githubusercontent.com%2Fcenter-for-threat-informed-defense%2Fattack-control-framework-mappings%2Fmaster%2Fframeworks%2Fnist800-53-r5%2Flayers%2Fby_family%2FAC%2FAC-4.json) )