Remove unnecessary extensions addition

Signed-off-by: Sidorov, Dmitry <[email protected]>

Author: MrSidims

include/spirv/unified1/spirv.core.grammar.json

@@ -9020,7 +9020,6 @@
             { "kind" : "LiteralInteger" }
           ],
           "capabilities" : [ "FPGALoopControlsINTEL" ],
-          "extensions" : [ "SPV_INTEL_fpga_loop_controls" ],
           "version" : "None"
         },
         {
@@ -9030,7 +9029,6 @@
             { "kind" : "LiteralInteger" }
           ],
           "capabilities" : [ "FPGALoopControlsINTEL" ],
-          "extensions" : [ "SPV_INTEL_fpga_loop_controls" ],
           "version" : "None"
         },
         {
@@ -9040,7 +9038,6 @@
             { "kind" : "LiteralInteger" }
           ],
           "capabilities" : [ "FPGALoopControlsINTEL" ],
-          "extensions" : [ "SPV_INTEL_fpga_loop_controls" ],
           "version" : "None"
         },
         {
@@ -9050,7 +9047,6 @@
             { "kind" : "LiteralInteger" }
           ],
           "capabilities" : [ "FPGALoopControlsINTEL" ],
-          "extensions" : [ "SPV_INTEL_fpga_loop_controls" ],
           "version" : "None"
         },
         {
@@ -9060,7 +9056,6 @@
             { "kind" : "LiteralInteger" }
           ],
           "capabilities" : [ "FPGALoopControlsINTEL" ],
-          "extensions" : [ "SPV_INTEL_fpga_loop_controls" ],
           "version" : "None"
         },
         {
@@ -9070,7 +9065,6 @@
             { "kind" : "LiteralInteger" }
           ],
           "capabilities" : [ "FPGALoopControlsINTEL" ],
-          "extensions" : [ "SPV_INTEL_fpga_loop_controls" ],
           "version" : "None"
         },
         {
@@ -9080,14 +9074,12 @@
             { "kind" : "LiteralInteger" }
           ],
           "capabilities" : [ "FPGALoopControlsINTEL" ],
-          "extensions" : [ "SPV_INTEL_fpga_loop_controls" ],
           "version" : "None"
         },
         {
           "enumerant" : "NoFusionINTEL",
           "value" : "0x800000",
           "capabilities" : [ "FPGALoopControlsINTEL" ],
-          "extensions" : [ "SPV_INTEL_fpga_loop_controls" ],
           "version" : "None"
         },
         {
@@ -9097,7 +9089,6 @@
             { "kind" : "LiteralInteger" }
           ],
           "capabilities" : [ "FPGALoopControlsINTEL" ],
-          "extensions" : [ "SPV_INTEL_fpga_loop_controls" ],
           "version" : "None"
         },
         {
@@ -9107,7 +9098,6 @@
             { "kind" : "LiteralInteger" }
           ],
           "capabilities" : [ "FPGALoopControlsINTEL" ],
-          "extensions" : [ "SPV_INTEL_fpga_loop_controls" ],
           "version" : "None"
         }
       ]